英语 一道选择填空题Mr Thompson was busy doing the experiment,only ________ once in a while to have a rest.A to stop B stopping C to have stopped D having stopped

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英语一道选择填空题MrThompsonwasbusydoingtheexperiment,only________onceinawhiletohavearest.AtostopBstoppingCto

英语 一道选择填空题Mr Thompson was busy doing the experiment,only ________ once in a while to have a rest.A to stop B stopping C to have stopped D having stopped
英语 一道选择填空题
Mr Thompson was busy doing the experiment,only ________ once in a while to have a rest.
A to stop B stopping C to have stopped D having stopped

英语 一道选择填空题Mr Thompson was busy doing the experiment,only ________ once in a while to have a rest.A to stop B stopping C to have stopped D having stopped
B 表示伴随,为现在分词在句中做伴随状语.容易错选A,A只有在表示预料之外的结果时才可以,而这里不是.

A only to do 表示一种出人意料的结果,一般是固定搭配

选D吧,过去完成时

only to do 表示出乎意料的结果
only doing 表示顺其自然的结果
他忙于做实验,只停了一会来休息, 并不是出乎意料的事情吧
在B,D中选. 从前一句was busy知道是过去 ,选D

D 分词结构,表示过去完成用了have形式

他忙于做实验,只停了一会来休息。 选 A to stop ,only后面加 动词不定时

d

a英语中,序数词后面、only后面,膝关节不定时