I.

 1. didn't work

2. is/doing

3. went

4. will build

5. Did/swim

6. bought

7. wrote

8. will be

9. doesn't go

10. talking

II.

1. There are six rooms in their house.

2. The traffic was heavy, so she went to work late.

3. Anh is the most friendly girl in the town.

4. The supermarket is in front of my school.

5. It is interesting for us to watch a soccer match in the stadium.

6. Tim is less creative than Nam.

7. Her brother went to the factory by his car yesterday.

8. There is a lot of sunshine im the summer in Viet Nam.

9. Students must work hard.

10. Let's skip rope in the yard!

IV.

1. are

2. play

3. and

4. warm

5.  summer

6. go

7. so

8. is

9. to

10. a

V.

1. My mother must prepare breakfast for everyone every morning.

2. Why don't we go camping in the mountain on the weekend?

3. My birthday is not on September the second.

4. We should not eat much meat nowadays.

5. What did Nam always do in his free time two years ago?

6. I am taking Manh to the park at the moment.

7. We are seeing surprised at snakes in the garden.

8. There is a lot of fruit and food in the fridge.

9. There are ten lorries to the right of the factory.

10. That child is able to count from one to one hundred. 

I/ 1. didn't work

2. is...doing

3. went

4. will build

5. Did...swim

6. bought

7. wrote

8. will be

9. doesn't go

10. talking

II/ 1. There are six rooms in their house.

2. The traffic was heavy, so she went to work late.

3. Anh is the most friendly girl in the town.

4. The supermarket is in front of my school.

5. It is interesting for us to watch a soccer match in the stadium.

6. Tim is less creative than Nam.

7. Her brother went to the factory by his car yesterday.

8. There is a lot of sunshine im the summer in Viet Nam.

9. Students must work hard.

10. Let's skip rope in the yard!

IV/ (1) are

(2) play

(3) and

(4) warm

(5) summer

(6) go

(7) so

(8) is

(9) to

(10) a

V/ 1. My mother must prepare breakfast for everyone every morning.

2. Why don't we go camping in the mountain on the weekend?

3. My birthday is not on September the second.

4. We should not eat much meat nowadays.

5. What did Nam always do in his free time two years ago?

6. I am taking Manh to the park at the moment.

7. We are seeing surprised at snakes in the garden.

8. There is a lot of fruit and food in the fridge.

9. There are ten lorries to the right of the factory.

10. That child is able to count from one to one hundred.