题目内容

9. He's not a perfect child. He sometimes talks back_______ his parents talk with him.

A. if
B. before
C. when

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10. Victoria, hurry up!_______ we can't arrive there on time.

A. Or
B. So
C. And

11.—Have you ever been to Beijing?—Yes. I ________ there last winter.

A. have been
B. went
C. goes
D. go

12. —Must we clean the room now?—No, you________.

A. mustn’t
B. needn’t
C. can’t
D. don’t

13. Tom is greeting people ____ a big smile.A. B. C. D.

A. by
B. with
C. of
D. at