how many days () she ()(stay) at home since she came back from school
问题描述:
how many days () she ()(stay) at home since she came back from school
答
为你解答。
How many days (has) she (stayed) at home since she came back from school?
在她回校以前,她在家待了多少天了?
解释:根据since引导的时间状语,这句话是现在完成时态。
答
has;been
答
has she been staying