题目内容

An average of 130,000 Chinese abroad for studies every year over the past few years, boosting exchanges in the educational fields.

A. was going
B. have been going
C. has been going
D. are going

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The US troops out of Iraq by the end of next month and they were sent there 9 years ago.

A. have withdrawn
B. will withdraw
C. had withdrawn
D. will have withdrawn

-Better not throw waste paper here and there.-I’m so sorry,but I the waste paper basket.

A. won’t see
B. wasn’t seeing
C. didn’t see
D. don’t see

-Are these seats available?-Sorry, sir. The seats .

A. have reserved
B. are reserved
C. reserved
D. are reserving

-Are you still waiting to make a phone call?-Yes. This woman on the phone for the last twenty minutes.

A. is talking
B. was talking
C. has talked
D. has been talking