Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Bạn ghi cho đúng môn học nhé !
1) ABCD là HBH thì:
\(\overrightarrow{AB}=\overrightarrow{DC}\)\(\Leftrightarrow\) \(\left(1;-5\right)=\left(-2-x_D;1-y_D\right)\)
\(\Leftrightarrow\) \(\hept{\begin{cases}-2-x_D=1\\1-y_D=-5\end{cases}}\)\(\Leftrightarrow\) \(\hept{\begin{cases}x_D=-3\\y_D=6\end{cases}}\)
2) Bạn chuyển hết vế phải qua vế trái
Xác định tọa độ các vecto MA MB MC (nhân với các hệ số tương ứng)
thì ta có được hpt:
\(\hept{\begin{cases}x_{MA}-2x_{MB}+x_{MC}=0\\y_{MA}-2y_{MB}+y_{MC}=0\end{cases}}\)
Bạn tự làm tiếp nhé
Exercise 5: Hoàn thành các câu sau:
1.(he/drive to word every day)
→→ He drives to work everyday.
2.(I/ not /think you're right)
→→ I don't think you're right.
3.(we/have enough time?)
→→ Do we have enough time?
4.(I/eat cereal in the morning)
→→I eat cereal in the morning.
5.(they / write e-mails every day?)
→→ Do they write e-mails everyday?
6.(you/ watch a lot of TV)
→→ You watch a lot of TV.
7.(he/not/read the newspaper)
→→He doesn't read the newspaper
8.(she/dance often ?)
→→ Does she dance often?
9.(where/I/come on mondays?)
→→ Where do I come on Mondays?
10.(what/you/do at the weekend?)
→→ What do you do at the weekend?
11.(you/not/drink much tea )
→→You don't drink too much tea.
12.(how/he/travel to work ?)
→→How does he travel to work?
13.(they/not/like vegetables)
→→They don't like vegetables.
14.(she/catch acold every winter)
→→She catches a cold every winter.
15.(I/go uot often? )
→→Do I go out often?
16.(you/speak English?)
→→Do you speak English?
17.(we/take the bus often)
→→We take the bus often.
18.(she/not/walk to school)
→→She doesn't walk to school.
19.(what/you/buy in the supermarket?)
→→What do you buy in the supermarket?
20.(how/he/ carry such a heavy bag?)
→How does he carry such a heavy bag?
1. _____ greatest invention of the 20th century is the computer.
A. θθ
B. the
C. a
D. an
2. Make sure you put your name at _____ end of the report.
A. θθ
B. a
C. an
D. the
3. We need to do more for ___ poor.
A. θθ
B. the
C. a
D. an
4. I saw ____ man going into the office. I don't know who ___ man was.
A. θθ / the
B. the / a
C. a / the
D. a / a
5. Milk is often added to___ tea in_____UK.
A. a / a
B. a / θθ
C. θθ / the
D. θθ / θ
V. Rewrite the following sentences:
1.What about going to Dam Sen park?
⇒⇒Why...don't we go to Dam sen Park......?
2. I want some milk?
⇒⇒I'd.....like some milk.................
3. The book is blue.
⇒⇒It's........a blue book..........
4. The girl is beautiful.
⇒⇒She is......beautiful..........
5. I'm eleven.
⇒⇒.............I'm eleven.........years.......old......
6. She likes noodles.
⇒⇒Her favorite.....food is noodles........
7. The Amazon River is longer than the Mekong River.
⇒⇒The Mekong...........is shorter than The amazon river.....
8. I'm Lan.
⇒⇒My........name is Lan.......
9. Miss White is younger than Mrs Young.
⇒⇒Mrs Young............is older than Miss White...........
10. Your bicycle is newer than my bicycle.
⇒⇒My bicycle..........is older than your bicycle..........
1.What about going to Dam Sen park?
⇒⇒Why...don't we go to Dam sen Park......?
2. I want some milk?
⇒⇒I'd.....like some milk.................
3. The book is blue.
⇒⇒It's........a blue book..........
4. The girl is beautiful.
⇒⇒She is......beautiful..........
5. I'm eleven.
⇒⇒.............I'm eleven.........years.......old......
6. She likes noodles.
⇒⇒Her favorite.....food is noodles........
7. The Amazon River is longer than the Mekong River.
⇒⇒The Mekong...........is shorter than The amazon river.....
8. I'm Lan.
⇒⇒My........name is Lan.......
9. Miss White is younger than Mrs Young.
⇒⇒Mrs Young............is older than Miss White...........
10. Your bicycle is newer than my bicycle.
⇒⇒My bicycle..........is older than your bicycle..........
V. Rewrite the following sentences:
11. It's often hot in the summer.
⇒⇒It's never........cold in the summer.....
12. The building is tall.
⇒⇒It's........a tall building...............
13. She isn't strong.
⇒⇒She.......is weak............
14. That box is smaill.
⇒⇒That is.......a small box............
15. Don't waste paper.
⇒⇒You shouldn't..........waste paper................
16. What your favorite food?
⇒⇒What food.........do you like best.......
17. They would like some vegetables.
⇒⇒They'd...........like some vegetables..........
18. She is shorter than I.
⇒⇒I am......taller than her...................
19. He is strong.
⇒⇒He isn't........weak..............
20. Her hair isn't long.
⇒⇒Her hair is.........short............
11. It's often hot in the summer.
⇒It's never cold in the summer
12. The building is tall.
⇒It's a tall building
13. She isn't strong.
⇒She is weak
14. That box is smaill.
⇒That is a small box
15. Don't waste paper.
⇒You shouldn't waste paper
16. What your favorite food?
⇒What food do you like best?
17. They would like some vegetables.
⇒They'd like some vegetables
18. She is shorter than I.
⇒I am taller than her.
19. He is strong.
⇒He isn't weak.
20. Her hair isn't long.
⇒Her hair is short
1. The last time she had swim was ten years ago
→→She hasn't....swum for ten years.......
2. I have never met such a famous person before
→→It is........the first time I have ever met such a famous person........
3. I last saw him when I was a student
→→I haven't......seen him since I was a student.....
4. I haven't come there for two years
→→I last........came here two years ago.....................
5. I have studied EL for 7 years
→→I started.........studying EL 7 years ago..................
6. I haven't read this kind of book before
→→This is.....the first time I have read this kind of book....
7. My family moved to HCM city 10 years ago
→→It is.....1o years since my family moved to HCM city......
8. The last time I went to meet Helen was over a year ago
→→It...over a year ago sice I last went to meet Helen...
- I haven't..met Helen for a year .......
9. My father is the most generous person I've ever meet
→→I've nver.........met a more generous person than my father.........
10. I last saw hm when I was a students→→I haven't.....seen him since I was a students...........
11. No one has played this kind of music before
→→This is....the first time I have ever played this kind of music........
12. John has not has his hair cut for over 6 months
→→The last time.......John cut his hair was over 6 months ago......
13. It is 2 weeks since it last rained
→→The last time......it rained was 2 weaks ago.........
It has....been 2 weeks since it last rained....
14. How long have they been married?
→→How long is it...since they have been married?....................
When........did they get married...............
15. How long is it since they bought this car?→→When.....did they buy this car?..............
16. Samuel started working for this company 5 years ago
→→Samuel has.......worked for this company for 5 years.......
17. I haven't been to Bristol for 3 years
→→It is..........3 years since I last went to Bristol ......
The last time....I went to Bristol was 3 years...
18. He hasn't seen his sister since she left for japan
→→He last......saw his sister when she left for japan...........
19. She began to work as a secretary 5 years ago→→She has.....worked as a secretary for 5 years..........
20. We worked very hard for the exam. Then we passed it→→Before........we passed the exam, we had worked very hard............
21. First my sister considered what to say. Then she decided to talk to her headmaster
→→After...my sister had considered what say, she had considered what to say.......
22. I learned my lessons. Then I went out for a walk→→Before....I went out for a walk, I had learned my lessons...
23. Her brother bought a new washing machine. First he checked the prices→→After.....her brother had checked the prices, he bought a new washing machine........
24. My mother took an aspirin. Then she felt a little better→→Before.....my mother felt a little better, she had taken an aspirin.............
25. The boys argued. Then they fought→→After.......the boys had argued, they fought.............
Put the verbs in brackets in the past simple or the past continuous tense
1. The last time she had swim was ten years ago→→....she hasn't swum for 10 years ..............................................
2. I have never met such a famous person before→→It is...................... the first time I have ever met such a famous person.....................................
3. I last saw him when I was a student→→I haven't.................SEEN him since I was a student.....................................................
4. I haven't come there for two years→→I last..............came there 2 years ago...............................................................
5. I have studied EL for 7 years→→I started........studying EL 7 years ago......................................................................
6. I haven't read this kind of book before→→This is..............the first time I have read this kind of book....................................................
7. My family moved to HCM city 10 years ago→→It is..........10 years since hcm city.......................................................
8. The last time I went to meet Helen was over a year ago→→It...........is a year since I last went to meet helen............................................
- I haven't.............gone to meet helen for over a year..................................
9. My father is the most generous person I've ever meet→→I've nver...........meet any person is more generous than my father........................................
10. I last saw hm when I was a students→→I haven't............seen him since i was a student.................................................................
11. No one has played this kind of music before→→This is..................the first time people have played this kind of music..................................................
12. John has not has his hair cut for over 6 months→→The last time..............John had his hair cut was over 6 months ago..........................................
13. It is 2 weeks since it last rained→→The last time...............it last rained was 2 weeks ago......................................................
It has..............rained for 2 weeks...................................................
14. How long have they been married?→→How long is it.......since they have been married ?................................................................
When.............was they married ?..............................................................
15. How long is it since they bought this car?→→When.........did they buy this car ?...........................................................
16. Samuel started working for this company 5 years ago→→Samuel has.......worked for this company for 5 years.......................................
17. I haven't been to Bristol for 3 years→→It is............3 years since I last went to Bristol........................................................
The last time............i went to bristol was 3 years ago.......................................
18. He hasn't seen his sister since she left for japan→→He last................saw his sister when she left for japan...........................................................
19. She began to work as a secretary 5 years ago→→She has.............worked as a secrectary for 5 years..................................................................
20. We worked very hard for the exam. Then we passed it→→Before.........we passed it , we had worked very hard for the exam................................................................
21. First my sister considered what to say. Then she decided to talk to her headmaster→→After.....my sister had considered what to say , she decided to talk to her headmaster...................................
22. I learned my lessons. Then I went out for a walk→→Before......I learnt my lessons , i had gone out for a walk.......................................................
23. Her brother bought a new washing machine. First he checked the prices→→After....he had checked the prices , Her brother bought a new washing machine.....................................................
24. My mother took an aspirin. Then she felt a little better→→Before.......my mother felt a little better , she had taken an aspirin..........................................................................
25. The boys argued. Then they fought→→After......the boys had argued , they fought ..........................................................................................
1)Miss Phuong went home early
⇒⇒Why______did Miss Phuong go home early_________ ?
2)I met Phong's father
⇒⇒Who_______did you meet________ ?
3)They wanted something
⇒⇒What________did they want________?
4)I have written over 20 novels
⇒⇒How many_______novels have you written________?
5)She will be married to a rich man
⇒ ⇒Who_______will she be married to________?
)Miss Phuong went home early
⇒Why did Miss Phuong go home early?
2)I met Phong's father
⇒Who did you meet ?
3)They wanted something
⇒What did they want?
4)I have written over 20 novels
⇒How many novels have you written?
5)She will be married to a rich man
⇒Who will she be married to ?
Dương Thanh Ngân ơi, câu này môn Toán em hãy đăng vào box Toán để nhận được sự hỗ trợ nhanh chóng nhé!