IV.

1. discovered

2. were playing

3. Did you speak - haven't seen - couldn't saw

4. left - haven't heard

5. wrote

6. had been studying

7. joined - was

8. Have …received

9. have Bob and Mary been married

10. arrived - had just gone

V. 

1. The style is called “Primitive Gothic”.

2. The ancient architecture style of Japan is amazing.

3. The temple was built in that type that looked like “pagodas”.

4. One of the most beautiful pagodas in the city is Nara.

5. The Castle was built by Mayas.

6. The Mayas live in the northern part of the Yucatan peninsula.

7. It is the pyramid of 91 steps on each side.

8. The total steps are 364 plus one.

9. This number refers to days of the new year.

10. I am too busy to talk to you now.

VI.

1. There is a lot of work for us to do.

2. You have a big family.

3. There are 2 cups of tea on the table.

4. He often goes to Bangkok by plane.

5. Our house is not near the school.

6. You need to clean the room before going out

7. You'd better take a holiday.

8. Unless you rest yourself, you will really be ill.

9. There is no faster way than this to get to the city center.

10. It took him two hours to write a letter.

Chúc em học tốt^^ cho chị xin ctlhn nhé!

IIII/

1. discovered 

2. were playing

3. Did you speak .... haven't seen .... didn't .... saw 

4. left ... haven't heard 

5. wrote 

6. has studied/ has been studying 

7. joined .... was 

8. Have you received 

9. have Bob and Mary been 

10. arrived ... has just gone
V/

1. The style is called " Primitive Gothnic"

2. The ancient architecture style of Japan is amazing.

3. The temple was built in that type that looked like pagodas.

4. One of the most beautiful pagodas in the city is Nara.

5. The Castle was built by the Mayas.

6. The Mayas live in the northen part of Yucatan peninsula.

7. It is a pyramid with 91 steps on each side.

8. The total steps are 364 plus one.

9. This number refers to days of the new year.

10. I am too busy to talk to you now

VI/

1. There is a lot of work for us to do.

2. You have a big family

3. There are 2 cups of tea on the table.

4. He often goes to Bangcok by plane.

5. Our house is not near our school.

6. You need to clean your room before going out.

7. You’d better take a holiday", a doctor said.

8. Unless you rest yourself, you will really be ill.

9. There is no way to get to the city centre than this way.

10. It took him two hours to write a letter.

Có j sai sót, mong bn thông cảm, nếu đc thì cho mik ctl hn nha :>>>