He worked late into the night yesterday. That’s he couldn't get up on time this morningA.

发布时间：2020-08-15 02:04:51

He worked late into the night yesterday. That’s      he couldn't get up on time this morning
A. how
B. why
C. what
D. when

网友回答

A. how
(答案→)B. why
C. what
D. when
解析：这是以why引导的表语从句.意为:那就是今天早上他为什么不能按时起床的原因.
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