B1:
1. Linh's parents are proud of him because he always gets good marks.

2. We are very interested in playing soccer when we lived in the countryside. 

3. I haven't talked with my uncle since he bought a new house in the city center.

4. The Browns buy a lot of food because they are going to have a party.

5. It is not only a small so there isn't enough for all of us.

B2:

1. received

2. for

3. working

4. number

5. an

6. gone

7. will

8. there

9. never

10. found

Question VII: Use the given words to make complete sentences.

1. Linh 's parents  proud  him  because  he always get good marks.

2. We are very interested play soccer when  live countryside.

3.I haven't talked with my uncle since he bought a new house in the city center.

4. The Browns  buy lot food because they are going to have the party.

5. It is not only a small so there isn't enough for all of us.

Question VIII: Fill in each blank with the suitable word in the following passage.

(1) received
(2) for
(3)  working
(4) number 
(5) an
(6) gone
(7). will
(8) there
(9) never
(10)found