aren't

Jill and Joe là số nhiều nên dùng are + not. 

=> Jill and Joe aren't classmates. 

(Dịch: Jill và Joe không cùng lớp) 

She has bought that house since 1990.

Câu đề là thì Quá khứ đơn, viết lại câu có thể dùng thì Hiện tại hoàn thành

Cấu trúc thì hiện tại hoàn thành:

(+) S + have/has + Ved/3 + O

(-) S + haven't/hasn't + Ved/3 + O

(?) Have/Has + S + Ved/3 + O?

Lưu ý:

- Khoảng cách năm thì dùng for

Ex. 4 years ago (QKĐ) -> for 4 years (HTHT)

- Mốc thời gian thì dùng since

Ex. in 1999 (QKĐ) -> since 1999 (HTHT)

$\Rightarrow$ She has had that house since $199$0

EX1. Choose the letter A, B, C or D the word that has the underlined part different from others.

Question 1:

A. houses        B. fridges            C. stores                 D. oranges

Question 2:

A. villas        B. rooms            C. attics                     D. beds

Question 3:

A. lamps             B. kitchens                   C. drawers              D. wardrobes

Question 4:

A. toilets             B. sofas                          C. lamps                  D. attics

Question 5:

A. tables              B. chairs                          C. sinks                  D. chests

đề có sai hok z

Answer:

1.Despite its open_ (D.economic) _ mechanism, the foreign investors are still risk-averse A. economical B. economics C. economizing D. economic

2 . The refuse collectors often work at night or even at midnight because they take (C. responsibility) for keeping the city clean and beautiful. A. possibility B. ability C. responsibility D. probability

3.Some students tend to choose block A,. ( C. whereas). others tend to choose block D. A. so that B. since C. whereas D. even if

 1. I'm very sorry that I have broken (broken/been breaking) your cup.

2. Oh, it's not ready! You have been writing (written / been writing) this compost tion for the whole day.

3. Ann's clothes are covered in stains. She has been painting (painted been paint ing) since morning. 4. I have known (known / been knowing) her for many years.

5. Where is Tom? I haven't seen (seen / been seeing) him today.

6. You are so dirty! What have you done (done / been doing) ?

7. This is the best book I have ever read (read / been reading).

8. Someone has eaten (eaten / been eating) my sweets. They are nearly all gone but the box was quite full a week ago.

9. Where have you been? I have been waiting (waited / been waiting) for you for ages.

10. Look! Somebody has been stealing (stolen / been stealing) your luggage.

11. You have been driving (driven / been driving) all day. Let me drive now.

12. You are very red. Have you run (run / been running) ?

13. She has had (had / been having) twelve driving lessons up to now

cảm ơn ạ

TL:

I still remember the first time I (1) have tried (try) to ski.

Have you had a parrot?

Do you have a parrot?

1 am

2 doesn't study

3 aren't

4 have

5 Does-live