Thanks teacher

dạ vâng

haha . 

2. She has watered the trees since six o'clock

3. They have worked here since last year

4. He began collecting in 2020

is

wears

is eating

likes

eats

knows/are

d

\(\left(2x+\dfrac{1}{2}y\right)^3=\left(2x\right)^3+3.\left(2x\right)^2.\dfrac{1}{2}y+3.2x.\left(\dfrac{1}{2}y\right)^2+\left(\dfrac{1}{2}\right)^3=8x^3+6x^2y+\dfrac{3}{2}xy^2+\dfrac{1}{8}y^3\)

1. on

2. on / in

3. in

4. from/to

5. at

6. at

7. in

8. of / on / in

9. by/ on

10. at / at / in

11. in / in

12. in

13. next

14. on

15. in

16. on

17. at

1. Let’s meet __on___ Tuesday. 
2. Let’s meet __for____ two hours. 
3. I saw him ___at___ 3:00 PM. 
4. Do you want to go there ___in_____ the morning? 
5. Let’s do it __at_____ the weekend. 
6. I can’t work _____at__ night. 
7. I’ll be there ____in___ 10 minutes. 
8. Let’s meet at the park __at_____ noon. 
9. I saw her ____on____ my birthday. 
10. I like going to the beach ___in____ the summer. 
11. I’ll see you ____\(\varnothing\)_____ next week. 
12. He was born _____in_____ 1991. 
13. Did you see her _____\(\varnothing\)____ today. 
14. It starts ___\(\varnothing\)_____ tomorrow. 
15. It was sunny ____on____ my birthday. 
16. The bus collected us ___at_____ 5 o’clock early ___in_____ the morning. 
17. What’s on the TV ___at_______ midnight. 
18. The factory closed ____in_____ June. 
19. ____In_____ the winter, it usually snows. 
20. __On______ Friday, she spoke to me. 
21. What are you doing ___at______ the weekend. 
22. They saw that car___at______ half past ten. 
23. The anniversary is _____on_____ May 10th. 
24. Where did you go ____\(\varnothing\)_____ last summer. 
25. The movie starts ___in______ 20 minutes. 
26. ___At______ the moment, I’m busy. 
27. They were very popular _____in_____ the 1980s. 
28. My appointment is ___on_______ Thursday morning. 
29. We had the meeting ___\(\varnothing\)______ last week. 
30. Are you staying at home ____on____ Christmas Day.