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

题目简介

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

题目详情

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
题型:单选题难度:偏易来源:不详

答案

B
stop的逻辑主语是he,表示主动关系。

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