6. You must practise ______ (play) the piano every day.

5. By the end of last term, we ______ (study) three thousand words.

4. The trees can stop the flood from ______ (wash) the earth away.

3. Paper is made ______ wood.

2. I can’t say anything ______ moves us deeply.

1. The people ______ travel all over the world think China is a beautiful country.

9．B　 　10．A 　11．B　 　12．D　 　13．C　 　14．A 　15．B

15. A. free　　　 　B　 sleepy　　　 　C　 happy　　　 D　 busy

　Key:　 1-5　 DABCB　 6-10　 CCCDC　　 11-15　 DCBBB

14. A. often　　　 B　 always　 　　C　 usually　　　 D　 sometimes

13. A. wake up　　 B　 look after　 C 　look for　　　 D　 bring up