9. Did the man in blue said that we _________( let ) him go if he did it?

8. Everything will be all right as soon as some measures ___________( take ).

7. The shop assistant told us that they ___________( sell ) out the books I wanted already.

6. ________ our school library __________ ( complete ) at the end of this year?

5. The students __________ ( write ) articles busily when the teacher entered the classroom.

4. It has been half a year since you __________ ( set ) out to learn biology.

3. The population of the U.S.A. __________( increase ) very fast. It has reached 3 billion.

2. This is the second time that you __________ ( ask ) them such a silly question.

1. Do you know if it _________( snow ) tomorrow?

10.The PLA man came to my help; _________, he also gave me a little of money.