9.You should have to stay behind if your homework__before five o'clock.A.isn't done B.won't be done C.doesn't do D.wasn't done

分类: 作业答案 • 2021-12-19 11:50:10

问题描述：

9.You should have to stay behind if your homework__before five o'clock.
A.isn't done B.won't be done C.doesn't do D.wasn't done

答

A主将从现，主句用了情态动词，那就不用用将来时的，但是从句还是要用一般式，故选A

答

B，使用正常时态即可
希望这一回答对你有所帮助

答

选A此句为if引导的条件状语从句结构;1．if从句用一般现在时,主句用一般将来时 If he runs he’ll get there in time.如果他用跑的,他就会及时赶到那儿.The cat will scratch you if you pull her tail.如果你拉猫的...