1. they (not give) ______________ his decision yet

It is very cold outside

mỗi sọt có số quả trứng là 

2520 : 8= 315 (quả)

5 sọt có số quả trứng là

315*5=1575(quả)

206 713 000

Bài 7 Tìm x biết

b, \(\dfrac{x}{2}-\left(\dfrac{3x}{5}-\dfrac{13}{5}\right)=\dfrac{7}{5}+\dfrac{7.x}{10}\)

CMR các phân số sau đqây tối giản với n thuộc z 

\(\dfrac{2n+3}{3n+5}\)

CMR các phân số sau đqây tối giản với n thuộc z \(\dfrac{n+1}{n+3}\)

1- I (be).......................................a student 2 years ago.
2- He (be).................................. a doctor two years ago.
3- They (be)................................. farmers last year.
4. Her aunt (take)................................... her to see Cham Temple last year.
5. Tuan (have).............................. a new bike yesterday.
6. She (not buy).................................. a new ruler yesterday?
7. He (not talk)..................... with his parents about his vacation in Da Lat last year.
8. They (not come).................................. school yesterday? 
9. The windows (not close)............................ yesterday?
10. We (not return) ......................................at home last Monday.
11. She (not eat ) .............................................fish and crab yesterday.
12. Lan (not go )................................. Ho Chi Minh city two years ago.
13. My parents (not take).................................to Vung Tau last week.
14. We (not have)......................................a lot of friends in Ha Noi.
15. Lan and Hoa (be).................................... your school two years ago?
16. What they (play) ...............................last week?
17. What Hoa (try)...................................................... on yesterday?
18. Who (talk) ....................................to about the film on TV last Monday?
19. Where they (stop) .....................................on their way back last Sunday?
20. What the student (wear)...................................... at school two years ago?

I. Complete the sentences using the past simple form of the verbs

1. I _____ at home all weekend. (stay)

2. Angela ______ to the cinema last night. (go)