-----all of the material,John passed the test easily.

问题描述:

_____all of the material,John passed the test easily.
_____all of the material,John passed the test easily.
A.Having studied
B.If he had studied
C.He studies
D.To study
1个回答 分类:英语 2014-11-21

问题解答:

我来补答
A.Having studied
这是现在分词短语作原因状语的.
再问: 大家好像都说选A 我也觉得是A 但是答案是B。 估计答案错了。
再答: 因为是因果关系,用状语从句也应该是原因状语从句, 即:
As(Because) he had studied all of the material,John passed the test easily

这里是陈述过去发生的一个客观事实,没有条件意味
如果选B, 除非说:
.If he 【had studied】 all of the material,John【 would have passed】 the test easily.
这是与过去事实相反的虚拟语气的动词形式
 
 
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