25、 Why has he been staying at home these days?He ______since months ago.
问题描述：
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
答
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.）