题目内容
Danny __________ hard for long to realize his dream and now he is popular.
| A.works | B.is working |
| C.has worked | D.worked |
.C。
表示从过去一直待续到现在的一段时间,要用现在完成时。
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题目内容
| A.works | B.is working |
| C.has worked | D.worked |