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A. clean; am reading B. am cleaning; reading

C. cleaning; read D. clean; read

【題目】During the speech, all the students sat ___________ and listened carefully.
A.in trouble
B.in surprise
C.in silence

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

A. There will be less pollution.

B. There will be more pollution.

C. We don’t know.

A. do B. does C. is doing D. are doing

A. Don’t ask me. B. Good idea! C. I’m happy!

—Yes, I did. You know, my brother in the match.

A. is playing B. was playing

C. has played D. will play

【題目】Not having __________ her daughter abroad for a long time, the mother was very worried.
A.heard of
B.heard from
C.learned from

A. healthy B. health C. healthily D. healths

A. It was very successful. B. I’m fine. C. Thanks.