He started to read books.He __ read for about an hour,when s

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/14 21:45:22

He started to read books.He __ read for about an hour,when suddenly he__ that the room was dark.
A was reading;noticed
B read; noticed
C read; had noticed
D had read; was noticing
为什么选B不选A?
原句中第一个空后没有那个read

这句话的意思是”他开始读书,当他突然发现这个房间是黑的的时候,他读了大约一个小时了“.
首先第一个空,他读了大约一个小时了,是过去时,而A选项是指过去进行时态,当他发现房子是黑的的时候,他并不是正在读了1个小时,
而且后面是 for加时间段,所以不用进行时而用过去时态.
第二个空,就指他发现的那个时刻,也用过去时态.

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