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英语句子改错：I didn't know why you were so busy in the last there years.改ABCD中其一：A.why B.were C.so busy D.in the last three years
题目详情
英语句子改错：I didn't know why you were so busy in the last there years.
改ABCD中其一：A.why B.were C.so busy D.in the last three years
改ABCD中其一：A.why B.were C.so busy D.in the last three years
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答案和解析
B.改成had been.in the last three years在句子末尾表示在过去三天里,表示一个时间段里发生的事情,故要用延续性的语态来表示.一般过去时只是短暂性的语态.
一般的,in the last+时间,句子用一般现在时态,但此处是I didn't know,主句是过去时,相应的have改成had
一般的,in the last+时间,句子用一般现在时态,但此处是I didn't know,主句是过去时,相应的have改成had
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