来自程西云的问题
【IsupposethatwhenIcomebackintenyears'timealltheseoldhouses____downAwillhavebeenpulledBwillhavepulledCwillbepullingDwillbepulled这是个将来完成时吧,那应该选B吧will/shallhavedone形式,但是为什么正确】
IsupposethatwhenIcomebackintenyears'timealltheseoldhouses____down
Awillhavebeenpulled
Bwillhavepulled
Cwillbepulling
Dwillbepulled
这是个将来完成时吧,那应该选B吧will/shallhavedone形式,但是为什么正确答案选A?
