Only after he had spent several nights working on the math problem _______ to wo
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Only after he had spent several nights working on the math problem _______ to wonder whether the problem was wrongly set.| A．that he began | B．did he begin | C．then he began | D．so that he began |
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答案
| B |
解析
| only +状语位于句首要用部分到装。 句意：只有花费了数晚计算这道数学题之后他才开始怀疑是否问题出错了。 |
举一反三
So that all the living things are dying out gradually .| A．serious polluted the lake is | B．serious polluted is the lake | | C．seriously polluted the lake is | D．seriously polluted is the lake |
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The door burst open and ， shouting with anger.| A．rushed in a crowd | B．in a crowd rushed | | C．a crowd in rushed | D．in rushed a crowd |
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was to blame.| A．The parents as well as their child | B．Not the parents but their child | | C．Neither the child nor his parents | D．Both the parents and their child |
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Only after liberation（解放） to be treated as human beings.| A．did they begin | B．they had begun | C．they did begin | D．has they begun |
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So convenient _______ to pay by credit card that more and more people apply for their credit cards. | A．do people find | B．people find it | C．find people | D．do people find it |
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