__experiments on the laboratoy,it started to rain heavily.A,while performing B,performing C,w...

__experiments on the laboratoy,it started to rain heavily.A,while performing B,performing C,w...
__experiments on the laboratoy,it started to rain heavily.
A,while performing B,performing
C,while i was performing D,to perform 理由是前后主语不一致,这也能解释得通.可这样不是就有两个谓语了吗(was 和 started ).如果按以下这道题分析这个题,不是该选B或A吗:Some students ran back to the dormitory ,magezines___under their arms.
A.to be held B.was held
C.held D.holding
分析:此问题只有一个逗号为简单句,所以只能有一个谓语动词,前面已经有ran作谓语了,
.
因此空格内只能使用非谓语动词
英语人气:766 ℃时间:2019-10-17 07:24:56
优质解答
一个谓语动词是 指 一个从句或主句,在没连词的情况下只能有一个谓语动词.第一个句子 选C while i was performing 这是个时间状语从句,里面必需要有一个谓语动词第二个句子 some students ran back to the dormitory,...
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