VI-

1.We have studied Eng for 4 years.

2.The doctor advised me to take a few days off.

3.She has taught in this college since 2001.

4.My house isn't as nice as yours.

5.We haven't eaten this kind of food since January.

6.Two million books are sent to America every year by them.

7.The new hotel will be openned next year(by them).

8.The house which was built last month is very beautiful.

9.We turned off the light so as not to waste electricity.

VII-

1.have worked

2.have taught

3.has known

4.have been

5.has become

6.will take off

7.to take

8.to hold

9.always forgets

10.was built

Chúc bạn học tốt nha ^^

1. have worked

2. have taught

3. has known

4. have been

5. is becoming

6. is going to take off

7. to take

8.to hold

9. is always forgetting( câu chê, than thở), còn k thì chia thì htđ bth

10. has been built