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25、 Why has he been staying at home these days?He ______sinc

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25、 Why has he been staying at home these days?He ______since months ago.
A、has been out of work
B、was out of work
C、has lost his work
D、had left from his work
25、 Why has he been staying at home these days?He ______sinc
A
since的主句一般用现在完成时,所以B和D不对.另外since短语表一段时间,所以主句不能用瞬间动词,所以C不对
这段日子他为什么一直呆在家里?
几个月前他就失业了.(自从几个月前以来他一直无业.)