题目内容
According to what he said, his father ________ for a very long time.
[ ]
A.
can be away
B.
could have been away
C.
can have left
D.
could have left
答案:B
解析:
解析:
|
从时间状语for a very long time可知应用完成时形式,leave是短暂性动词,不能与表示一段时间的短语连用,故只能选B项。 |
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