E2: Correct: 1,2,4,6,8.

     Incorrect:3,5,7.

E3 1.wrote

2.is considered

3.offered

4.tought

5.is grown

6.was the floor not cleaned

E4  

1. The temple was reconstucted in 1903.

2.HCM mausoleum is visited by thousands of people every day.

3.She isn't invited to my birthday party by me.

4. The Khue Van pavilion was built inside the Temple of Literature.

5. Why is the Temple of Literature visited by many students before their exam?

6.The 82 Doctor's stone tablets there was seen by me.

E5

1. is located

2.consists

3.prepared

4.was reconstructed

5.is surrounded

6. is regarded