( ) the door slowly opened, there was a hysterical scream of

问题描述:

( ) the door slowly opened, there was a hysterical scream of terror.
A:When
B:While
C:As
D:Whenever
1个回答 分类:英语 2014-12-16

问题解答:

我来补答
A
表示当
while必须有一个是进行时态
as一般不放在句首
whenever无论何时,让步状语从句,不对
 
 
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