题目内容
| There _____ great changes in our country in the past twenty years. |
|
[ ] |
| A. have been B. has been C. have had D. has had |
| A |
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题目内容
| There _____ great changes in our country in the past twenty years. |
|
[ ] |
| A. have been B. has been C. have had D. has had |
| A |