It was strange that 后面是不是should do 可以接should have done
It was strange that 后面是不是should do 可以接should have done It was strange that you ______ for Maggie’s address.I just got a letter from her---the first one since her family moved on August 31,1999. A.should have asked B.should ask C.could ask D.would have asked 选哪个答案,为什么?