13. I will tell you how to get to the place; you'd better _____________it __________.

A. try; on　 B. get; off　 C. take; down　 D. pick; up

12. --- Can you guess if they _____________to play basketball with us?

--- I think they'll come if they _______________tree.

A. come; are　　　　 B. will come; will be

C. will come; are　　 D. come; will be

11. The doctor did what he could _________________that child.

A. save　 B. to save　 C. saved　 D. saving

10. --- You must come back every month.

--- Yes, I __________________.

A. will　 B. must　 C. should　 D. can

9. Today, the forests have almost gone. People must ___________down too many trees.

A. stop to cut　　　　　　 B. stop from cutting

C. be stopped to cut　　　 D. be stopped from cutting

8. Which of the following does paper burn in?

A. CO2　 B. N2　 C. O2　 D. He

7. ___________comes from cows.

A. Wool　 B. Chicken　 C. Pork　 D. Milk

6. In the bookshop, a reader asked the shopkeeper ____________Who Moved My Cheese was an interesting book.

A. that　 B. how　 C. what　 D. if

5. --- Dad, when will you be free? You agreed to go to the seaside with me four days ago.

--- I am sorry, Jean. But I think I will have a _____________holiday soon.

A. four-days　 B. four-day　 C. four days　 D. four day

4. ___________ you free last night?

A. Were　 B. Was　 C. Are　 D. Do