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1.I haven't really enjoyed myself since your birthday party.
2. Tom has been to Scotland since last Friday.
3. How long is it since you rode a bike the last time?
4. He hasn't been in touch with me for three weeks.
5.It's three weeks since it rained the last time.
1. I haven't really enjoyed myself since your birthday party.
2. Tom has been in Sotland since last Sunday
3. How long is it from the last time you ride a bike ?
4. He hasn't been in touch with me since three weeks ago
5. It hasn't rained since three weeks ago
1) He has been here the first time
2)I have been playing tennis 3 moths ago
3)They have been to plant tree when it stopped raining.
4)She isn't eaten this food before
5)My uncle has been left here three days
6)I have seen him was two weeks ago
1, My brother can run very fast
\(\Rightarrow\) My brother is a fast runner
2, Unless we protect the envioment, we will destroy ourselves
\(\Rightarrow\) If we don't protect the envioment, we will destroy ourselves
3, Unless she is more hard-working, she will get low marks
\(\Rightarrow\) If she isn't more hard-working, she will get low marks
4, Unless he listens to his parents,he will fail
\(\Rightarrow\) If he doesn't listen to his parents, he will fail
5, They began watching the movie one hour ago
\(\Rightarrow\) They have watched the movie for an hour
6, He last cried ten years ago
\(\Rightarrow\) He has not cried since ten years ago
7, They've lived here for six years
\(\Rightarrow\) They moved to here six years ago
8, I've never read a more romatic story
\(\Rightarrow\) It's the most romantic story I have ever read
9, No one works harder than Barbara
\(\Rightarrow\) Barbara is the hardest worker
10, I haven't met him for two years
\(\Rightarrow\) It's two years since I last met him
11, Richard can cook very well
\(\Rightarrow\) Richard is a good cook
12, Peter spent three hours repainting his house
\(\Rightarrow\) It took Peter 3 hours to repair his house.
1:this is the first time he has been here.
=>he has...never been here before ............
2,i started playing tennis 3 months ago.
=>i have........played tennis 3 months ago..................
3,they began to plant trees when it stopped raining.
=>they have....planted trees when it stopped raining..................
4,she has never eaten this fruit before.(thấy sai sai)
=> she is.........................
5,it's three days since my uncle left here.
=>my uncle has....left here three days ago .......................
6,the last time i saw him was two weeks ago.
=>i have.........seen him two week ago.......................
1. Rewrite, using because / because of.
A.
1, Because he behaved badly, he found himself in trouble.
=> Because of behaving badly, he found himself in trouble.
2. Because of theri good performance, they won the first prize
=> Because they performed well, they won the first prize
3. Because of your advice, we didn't use that poisonous chemical.
=> Because You advised, we didn't use that poisonous chemical.
B.
4. John succeeded in his exam because he worked hard and methodically
=> John succeeded in his exam because of working hard and methodically
5. Margaret stayed home because her mother was sick.
=>Margaret stayed home because of her sick mother
6. We stopped our car because the traffic lights turned red.
=> We stopped our car because of the fact that the traffic lights turned red.
2. Rewrite, using although / though / despite / in spite of.
a. Everybody has great regard for him despite his povert
=>Everybody has great regard for him he was poor
b. He studied very well despite his hard life at that time.
=>He studied very well although his life was hard at that time.
c. Despite being good at English, he wasn't chosen.
=>although he was good at English, he wasn't chosen.
d. Despite having an English name, he is in fact German.
=>although he has an English name, he is in fact German.
e. He always studied hard Despite encountering difficulty.
=>He always studied hard though he encounters difficulty.
f. Despite the bad weather, he came to the meeting on time.
=>although it was bad , he came to the meeting on time
1. My brother sleeps on the floor( often ).=> My brother often sleeps on the floor.
2. Does He stay up late?(sometimes)=> He stays up late.
3.I do the housewwork with my brother.(always)=> I always do the housework with my brother .
4.Peter and Marry come to class on time.(never)=> Peter and Mary never come to class late .
5. Why does John's son get good marks?(always)=> Jogn's son always get good marks .
6. Do you go shopping?(usually)=> I usually go shopping
7. She is crying . (seldom)=> She seldom cry
8.My father has popcorn.(never)=> My father never hasn't popcorn
Viết lại các câu sau sao cho nghĩa ko thhhay đổi.
1/ The red shirt is more expensive than the blue one.
=>The blue shirt is cheaper than the red one.
2/ Secondary schools are much bigger than primary schools.
=>Primary school are much smaller than the secondary ones.
3/ Ann always gets good marks, but Mary always gets excellent marks.
=>Mary studies better than Ann.
4/ Tom got 3 accidents last year but Smith didn’t.
=>Smith drove more carefully than Tom last year.
5/ He doesn’t learn English as well as she.
=>She learns English better than him.
6/ He didn’t take anything as he left the factory.
=>He left the factory without taking anything.
7/ This house is less comfortable than the one we saw last month.
=>This house is not as/so comfortable as the one we saw last month.
8/ Learning English is interesting.
=>It’s interesting to learn English.
9/ He was so tired that he felt asleep before the end of the film.
=>He was too tired to see the end of the film
10/ Jane can play the piano better than Elizabeth.
=>Elizabeth can't play the piano as well as Jane.
GOOD LUCK 
1/ The red shirt is more expensive than the blue one.
=>The blue shirt is not as expensive as the red one.
2/ Secondary schools are much bigger than primary schools.
=>Primary schools are not as big as secondary schools.
3/ Ann always gets good marks, but Mary always gets excellent marks.
=>Mary studies better than Ann does.
4/ Tom got 3 accidents last year but Smith didn’t.
=>Smith drove more carefully than Tom did.
5/ He doesn’t learn English as well as she.
=>She learns English better than he does.
6/ He didn’t take anything as he left the factory.
=>He left the factory without taking anything.
7/ This house is less comfortable than the one we saw last month.
=>This house is not as comfortable as the one we saw last month.
8/ Learning English is interesting.
=>It’s interesting to learn English.
9/ He was so tired that he felt asleep before the end of the film.
=>He was too tired to see the end of the film.
10/ Jane can play the piano better than Elizabeth.
=>Elizabeth cannot play the piano as well as Jane can.
Ex1. Past Simple-> Present Perfect
1. I didn’t call her up 2 days ago. I haven’t called her up for 2 days
2. Did you finish the test an hour ago? Have you finished the test for an hour?
3. I started playing tennis last year. I’ve played tennis last year
4. He began to use the computer when he was 19. He has used the computer since he was 19
5. She didn’t learn hard in 2005. She hasn’t learned hard since 2005
6. Peter watched this film when he came home. Peter has watched this film since he came home
7. It’s a week since I last saw her. I haven’t seen her for a week
8. The boy began playing soccer a year ago. The boys have played soccer for a year
9. When did you first see her? How long have you seen her?
10. The last time we saw her was 2 months ago. We haven’t seen her for 2 months
11. Tom did not work here when I met him on the street. Tom has worked here since I met him on the street
12. When did you first know her? How long have you known her?
hình như mk đã tl cho bạn trên h rồi thì phải
1,he wasn't hungry,but he ate too much noodles
=> although heate too much noodles
2,the last time i met him was three weeks ago
=>i have three weeks ago to met him last time
3,her brother works very hard,so he always gets good marks
=> her brother always gets good marks
1. Although he wasn't hungry, he ate too much noodles
2. I haven't met him for 3 weeks
3. Because her brother works very hard, he always gets good marks