He was busy writing a story，only _________ once in a while to smoke a cigarette．

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He was busy writing a story，only _________ once in a while to smoke a cigarette．

题型：不详难度：来源：
He was busy writing a story，only _________ once in a while to smoke a cigarette．
A．to stopB．stopping
C．to have stoppedD．having stopped

答案
B
解析
stop的逻辑主语是he，表示主动关系。
举一反三
_________ in the fields on a March afternoon，he could feel the warmth of spring．
A．To walkB．Walking
C．WalkedD．Having walked

题型：不详难度：| 查看答案
　He was made _____.
A．goB．gone
C．goingD．to go

题型：不详难度：| 查看答案
　I saw the boy _____ out a moment ago.
A．runB．runs
C．how to runD．running

题型：不详难度：| 查看答案
　Most of the people _____ to the party were famous scientists.
A．invitedB．to invited
C．being invitedD．inviting

题型：不详难度：| 查看答案
　The workers are pouring _____ steel into the model.
A．meltingB．melted
C．meltD．being melted

题型：不详难度：| 查看答案
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