she may be at home now.同义句是什么?

1：She was greatly shocked at the scens before her eyes.Never did she expect that the local condition (D ) be so awful.
A.could B.might C.should D.would
2:“If you get good scores in the test,you (D ) have a gift from me.”I promise.
A.shall B.may C.must D.would
虚拟语气,从句用一般现在时,主句用将来时.
3:I've decided to take the job and I (C ) change my mind.
A.mustn't B.can't C.won't D.may not
4:--Is Jobnson on duty today?
--It (C ) be him.It's my turn.
A.may not B.won't C.mustn't D.can't
5:Look at the floor.Tom I ( ) you watch TV while having a meal?
A.should B.could C.would D.must
这句话有错误.
6:--May I pick a flower in the garden?
--(C )
A.No,you need B.No,please C.No,you mustn't D.No,you won't
7:--Don't press the button,John.
--What if I (C)
A.did B.would C.will D.shall

Maybe she is at home

Maybe she is at home.

Maybe she is at home now.