12. She was born ______ April 21,1999.

　　 A. in　　　　 B. on　　　　　 C. at　　　　　 D. for

11. It’s still early. You ________ worry about the time.

　　 A. can’t　　　　 B. needn’t　　　 C. mustn’t　　　 D. may not

10. I haven't heard _______ my uncle for a long time.

　　 A. to　　　 B. for　　　　 C. on　　　　 D. from

9. The baby is sleeping. ________ the radio.

　　 A. Turn off　 B. Turn down　 C. Turn on　 D. Turn to

8. Tom went to bed after he finished ________ his homework.

　　 A. doing　　　 B. to do　　　 C. did　　　　 D. do

7. We wanted ________ our new ideas.

　　 A. trying of　 B. to try out　 C. try on　　 D. trying on

6. The Changjiang River is one of ________ rivers in China.

　　 A. longer　　 B. long　　　　 C. longest　　 D. the longest

5. There are trees on ________ sides of the river.

　　 A. each　　　 B. both　　　 C. every　　　 D. all

4. Please pass the picture from one to________.

　　 A. another　　 B. other　　　 C. the other　 D. others

3. You must speak English as ________ as possible.

　　 A. clearly　　 B .clear　　　　 C. clearer　　 D. clearest