It was not until the beginning of the twentieth century________to explore space.
题型：不详难度：来源：
It was not until the beginning of the twentieth century________to explore space.| A．did man begin | B．when man began | | C．that man began | D．then man began |
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答案
| C |
解析
| 考查not until的强调句型。结构为：it is + not until+其它+that … ,故选C，句意为：就是直到二十世纪开始的时候人类开始探索太空。 |
举一反三
I feel it is you rather than the girl who_____ for being late for the speech.| A．is to blame | B．are to blame | C．is to be blamed | D．are to be blamed |
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--No. it is the first time that I ____here.| A．am | B．be | C．have been | D．had been |
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