Hecouldn'texplain________.A.whyheis

发布时间：2020-07-27 07:25:45

He couldn't explain ________.A.why he is lateB.why he was lateC.what he is lateD.what he was late

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B解析解析：why引导的宾语从句，用疑问词加陈述句的语序。
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