10. Baby tigers learn how to catch other animals if they _____ their mothers.　　　

A. see　　　　 B. look at　　 C. watch　　 D. look for　　　　　　　　　

9. I will see some beautiful birds if walk ______ a rainforest.　　　 　　　　

A. pass　　　 B. past　　　 C. through　　 D. across　　　　　　　　

8. If farmers cut down trees and forest , giant pandas will have nowhere ______.

A. to live on　 B. to live in　 C. to live　　 D. to live at　　　　　　　

7. Linda, are the clothes under the book yours?　 You ‘d better______.

A. take them off　 B. put off them　 C. take off them　 　D. put away them　　　

6. Blinda’s mother _______ if she __________ her work this week .

A. comes back ; finishes　 B. comes back; will finish

C.　 will come back ; finishes　 D. will come back ; will finish　　　　　

5. The _____ giraffe in the zoo is very lovely .

A. ten-year-old　 B. ten years old　 C. ten-years old　 D. ten-years old　　

4. If the phone _______ , can you answer it ?

A. rings　 　　B. is ringing　　 C. will ring　 D. rang　　　　　　

3. He will come ________ you ask him .　　　　　　　　　　

A. whether　　 B. unless　　　 C. if　　　　 D. while　　　　

2. You can’t leave ______ you have cleaned the classroom.　　　　

A. If　　　 B. whenever　　 C. unless　　　 D. after　　　　　

1．I don’t know if he _______ tomorrow . If he _______, I will tell him about it .

A. will come ; will come　　 B. comes ; comes　

C. comes; will come　　　　 D. will come　 ; comes