几道单选题,并说明选择理由
1.Hetoldmethatheprefered______athomeratherthan______outforawalk.为什么填tostay;go
2."showmeyourpaper,please.Thisisimpossible!It_____betheanswer."为什么是shallnot
3.-HiMarry!
-HiNick!CanIhaveaquickwordwithyou?
-Sure.
-Canyoucometothedancetomorrownight?
-______为什么填Sorry,I'mplayingbasketball.
第二题补充:
A.shallnot
B.can't
C.needn't
D.doesn'thaveto