题目

___come out of the building,my first thought was to call the fire department.
A.having seen the smoke
B.as soon as the smoke was soon
C.when i saw the somke
D.on seeing the smoke

提问时间：2021-03-13

答案

答案：C
翻译：当我看见烟从房子里冒出来时,我的第一念头就是给消防局打电话.
1.AD都使用了非谓语结构做状语,这就要求非谓语动词see的逻辑主语必须是句子的主语my first thought,这样明显不符合逻辑,因为逻辑主语明显应该是I,而不是my first thought.
2.如果选B,则要求是：As soon as the smoke was seen (to) come out of the building
不带to的不定式做宾语补足语时,变成被动语态后要补上to,由此排除B.
3.综上所述,只有答案C为正解.
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