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I/

1. Millions tons of rice is exported by Viet Nam every year .

2. Trees are usually planted in Vietnamese's neighborhood after Tet holiday.

3. How many festivals are celebrated in your community? 

4. What has been done by you since you came back? 

5. Our desk was repaired by them last week .

6. He hasn't been seen for a long time. 

7. Our grandmother hasn't been met since last night.

8. The rice was separated from the husk by the girls.

9. A new house will be built next year.

10. A car is going to be bought by us. 

II/

1. The tourist asked if /whether it was far from Hanoi.

2. My mother said to me that she thought I would be successful.

3. I asked him if his parents spoke English.

4. The teacher said to us that we had to try our best to study hard for our exam. 

5. Would you mind if I borrowed your dictionary?

6. Do you mind solving this math problem for me? 

7. The boys who are planting trees are in the volunteer group of Long An school.

8. The pen put in the box is mine. 

9. I'm happy to pass all the exams. 

10. We are delighted that you are interested in protecting environment.

Chúc học tốt!