Many man-made satellites _____ up into space by many countries.[ ]A. sent

题型：同步题难度：来源：

Many man-made satellites _____ up into space by many countries.[     ]
A. sent
B. have sent
C. has been sent
D. have been sent

答案

举一反三

The volunteers _____ a lot of help to the community for nearly ten years.      [     ]
A. offered
B. will offer
C. are offering
D. have offered

题型：上海中考真题难度：| 查看答案

I _____ my hometown for a long time. I really miss it![ ]
A. left
B. went away from
C. have left
D. have been away from

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－Where is Ben?
－He _______ to the teachers" office. He will be back soon.[ ]
A. go
B. has gone
C. has been

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—I"ll go to Beidaihe for my holiday this summer.
—It"s really a beautiful place. I _______ there twice.    [     ]
A. am going
B. will go
C. have been
D. have gone

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The film _____ for half an hour.[     ]
A. has begun
B. has been on
C. has been begun
D. began

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