\(\frac32+\frac{9}{2\cdot5}+\frac{12}{5\cdot9}+\frac{12}{9\cdot13}+\frac{15}{13\cdot18}\)

\(=3\left(\frac12+\frac{3}{2\cdot5}+\frac{4}{5\cdot9}+\frac{4}{9\cdot13}+\frac{5}{13\cdot18}\right)\)

\(=3\left(1-\frac12+\frac12-\frac15+\frac15-\frac19+\frac19-\frac{1}{13}+\frac{1}{13}-\frac{1}{18}\right)\)

\(=3\left(1-\frac{1}{18}\right)=3\cdot\frac{17}{18}=\frac{17}{6}\)

1.They listen to music every day (+) They don't listen to music every day. (?) Do they listen to music every day?

2.She plays badminton every afternoon (+) She doesn't play badminton every afternoon. (?) Does she play badminton every afternoon?

3.We love carving wood at the weekend. (+) We don't love carving wood at the weekend. (?) Do we love carving wood at the weekend?

4.He does homework every night. (+) He doesn't do homework every night. (?) Does he do homework every night?

5.Mary and Peter go fishing after school. (+) Mary and Peter don't go fishing after school. (?) Do Mary and Peter go fishing after school?

6.We are working on the new show right now. (+) We are not working on the new show right now. (?) Are we working on the new show right now?

7.(+) I am talking on the phone at the moment. (-) I am not talking on the phone at the moment. (?) Am I talking on the phone at the moment?

8.(+) The running is very fast. (-) The running is not very fast. (?) Is the running very fast?

9.(+) Julia is baking a chocolate cake at the moment. (-) Julia is not baking a chocolate cake at the moment. (?) Is Julia baking a chocolate cake at the moment?

10.(+) Tony and Kaity are helping the teacher right now. (-) Tony and Kaity are not helping the teacher right now. (?) Are Tony and Kaity helping the teacher right now?

1. They listen to music every day

(+): They listen to music every day.
(-): They do not (don’t) listen to music every day.
(?): Do they listen to music every day?

2. She plays badminton every afternoon

(+): She plays badminton every afternoon.
(-): She does not (doesn’t) play badminton every afternoon.
(?): Does she play badminton every afternoon?

3. We love carving wood at weekend

(+): We love carving wood at the weekend.
(-): We do not (don’t) love carving wood at the weekend.
(?): Do we love carving wood at the weekend?

4. He does homework every night

(+): He does homework every night.
(-): He does not (doesn’t) do homework every night.
(?): Does he do homework every night?

5. Mary and Peter go fishing after school

(+): Mary and Peter go fishing after school.
(-): They do not (don’t) go fishing after school.
(?): Do Mary and Peter go fishing after school?

6. We are working on the new show right now

(+): We are working on the new show right now.
(-): We are not (aren’t) working on the new show right now.
(?): Are we working on the new show right now?

7. (Chỉ có phủ định: "I am not talking on the phone at the moment")

(+): I am talking on the phone at the moment.
(-): I am not talking on the phone at the moment.
(?): Am I talking on the phone at the moment?

8. (?) Is he running very fast?

(+): He is running very fast.
(-): He is not (isn’t) running very fast.
(?): Is he running very fast?

9. Julia is baking a chocolate cake at the moment

(+): Julia is baking a chocolate cake at the moment.
(-): Julia is not (isn’t) baking a chocolate cake at the moment.
(?): Is Julia baking a chocolate cake at the moment?

10. (?) Are Tony and Kaity helping the teacher right now?

(+): Tony and Kaity are helping the teacher right now.
(-): Tony and Kaity are not (aren’t) helping the teacher right now.
(?): Are Tony and Kaity helping the teacher right now?

 nhé bạn

Ta có: \(\frac{40}{x}=\frac{48}{30}\)

=>\(\frac{40}{x}=\frac{48:6}{30:6}=\frac85=\frac{40}{25}\)

=>x=25

từ ghép :cảnh sát , giao thông , an toàn , tuần tra , sách vở

từ láy : ngay ngắn , thật thà , lon ton , rì rào , lặng lẽ

✅ 5 từ ghép (gồm hai tiếng có nghĩa, ghép lại với nhau):

1. Bàn ghế
2. Học sinh
3. Nhà cửa
4. Xe đạp
5. Trường học

✅ 5 từ láy (lặp lại âm hoặc vần, thường để gợi hình, gợi cảm):

1. Lấp lánh
2. Lom khom
3. Lung linh
4. Rì rào
5. Nhấp nhô

Does she like apples ?

"Why does she like apples?"