2. She has given up smoking for 1 year

3. She has learnt E for 10 years

4. Tom and Mary have worked in that factory since 1990

5. I haven't written to you for 1 month

6. I have lived in Hue since I was an eleven-year-old girl

7. He hasn't seen her for 12 years

8. I haven't seen Nam for 3 years

9. We have lived hear for 15 years

0. She hasn't visited me for 5 months

33. How do you go to the zoo?

34. Mai's father is taller than Khoa's father

35. January is the first month of the year

36. He works on the farm every day

1. among

2. between

a) Cấu hình của a là:

\(1s^22s^22p^4\)

Ta có số e của lớp ngoài cùng là 6 => Phi kim

b) Cấu hình của b là:

\(1s^22s^22p^63s^23p^63d^54s^2\)

Ta có số e của lớp ngoài cùng là 2 => Kim loại

c) Cấu hình của c là:

\(1s^22s^22p^63s^23p^63d^74s^2\)

Ta có số e của lớp ngoài cùng là 2 => Kim loại

d) Cấu hình của d là:

\(1s^22s^22p^63s^2\)

Ta có số e của lớp ngoài cùng là 2 => Kim loại

1. interested

2. journalist

3.unpleasant

4. sickness

5.fragility

6. monopolize

7. moutainous

8. sharing

9. stranger

10. usually

1. Did You _go_______ (go) out last night? – Yes. I _went_____ (go) to the cinema but I didn't enjoy the movie very much.

2. It often ___takes_____ (take) me twenty minutes to go to school.

    How long __does____ it ___take_____  (take) you , Linh?

3. My sister __goes______  (go) to the Youth Club every weekend. She enjoys ___playing_____ (play) sports very much.

4. "Nam is in hospital". - "Yes, I know. I _will visit_______  (visit) him tomorrow."

5. When my brother and I  _were_______ (be) children, we had two cats and a dog.

6. That proposal  __is being considered______ (consider) by the members right now.

7. Anyone who (not finish) _hasn't finished_______ his work won't be allowed to leave now.

13. watching

14. is washing

15. to eat

16. will have

17. cook

18. don't go

Bài 1.

Đổi \(36km\)/\(h=10m\)/\(s\)

Gia tốc hướng tâm của xe là:

\(a_{ht}=\dfrac{v^2}{r}=\dfrac{10^2}{100}=1\left(\dfrac{m}{s^2}\right)\)

Bài 2

Đổi \(f=600\) vòng/ phút = \(10\)vòng/ giây

tốc độ góc của một điểm ở đầu cánh quạt là:

ω\(=2\text{π}\cdot f=2\text{π}\cdot10=20\text{π}\left(\dfrac{rad}{s}\right)\)

5. new windows

16. goes

17. Do/ listen

18. does/ go

19. are learning

20. is riding

1. her birthday

2. does he live?

3. going to the cinema?

4. go camping