16. Dave did his homework and then went to bed.

Before Dave did his homework, he had gone to bed.

After Dave had done his homework, he went to bed.

After having done his homework, Dave had gone to bed.

Before Dave went to bed, he did his homework.

17. Chatting with friends is interesting.

The only interesting thing is chatting with friends.

People chatting with friends are interesting.

It is interesting to chat with friends.

The friends we chat with are interesting.

18. STRESS

appreciate

industrial

demonstration

embarrassing

19. STRESS

progress

access

item

idea

20. They watched the bus _____ into the distance.

disappear

to disappear

disappearing

disappeared

Đáp án B => had done

cấu gián tiếp nên động từ cần lùi thời

3 Alice and David's plane / land? ✓

Has Alice and David's plane landed yet?

Yes, it has already landed.

(Máy bay của Alice và David đã hạ cánh chưa?

Rồi, nó đã hạ cánh rồi.)

4 Jim / read The Hobbit? X

Has Jim read The Hobbit yet?

No, he hasn't read it yet.

(Jim đã đọc The Hobbit chưa?

Chưa, anh ấy chưa đọc nó.)

5 Fran / tidy her bedroom? ✓

Has Fran tidied her bedroom yet?

Yes, she has already tidied her bedroom.

(Fran đã dọn dẹp phòng ngủ của cô ấy chưa?

Rồi, cô ấy đã dọn dẹp phòng ngủ của mình.)

6 Simon and Clare / arrive at school? X

Have Simon and Clare arrived at school yet?

No, they haven't arrived at school yet.

(Simon và Clare đã đến trường chưa?

Chưa, họ vẫn chưa đến trường.)

7 Terry / see/the latest Batman film? ✔

Has Terry seen the latest Batman film yet?

Yes, he has already seen it.

(Terry đã xem bộ phim Batman mới nhất chưa?

Rồi, anh ấy đã xem nó rồi.)

His homework has been done for hours by him.

C

C

1. Dinner had just cooked.

2. A picture wasn't drawing at that moment.

3. His homework hadn't done by Nam yet.

1. Dinner has just been cooked.

2. A picture is not being drawn by him at the moment.

3. His homework hasn't done by Nam yet.

giup minh voi

    I choose A

He must have done his homework 

Good luck

a

Chào em, em tham khảo nhé!

Richard never succeeded in getting his homework done on time.

A. Richard never had to get his homework done on time.

B. Richard was never interested in getting his homework done on time.

C. Richard never delayed getting his homework done on time.

D. Richard was never able to get his homework done on time.

Chúc em học tốt và có những trải nghiệm tuyệt vời tại hoc24.vn!

A

has => have 

after => before

look => will look 

doesn't pass => pass

will get => won't get

is => were

will => would

All the exercises in this books has been done carefully by him  before.

                          A                         B                                C   

   D

 Tom had done  his homework after he went to bed last night.

           A              B                     C                 D

 If you try these cosmetics, you look five years younger.

A                B                              C                          D

 Sam will not graduate unless he doesn’t pass all the tests.

           A                          B                  C                  D

You will get bad marks if you review these lessons and do these exercises.

           A                        B            C                                  D

 If today is Sunday, we would stay  at home and watch TV.

              A                                 B    C                     D

 If you were the president, what will you do to help the environment?

 A           B                                   C                   D