用could,can,may,must,needn't填空。(初二英语)
1.A:_____youanswerthequestioninEnglish?
B:Sorry,I_____._____IansweritinEnglish?
A:No,you_____.You_____answeritinChinese.
2.A:_____Iuseyoureraser,Bill?
B:Sorry,Idon'thaveoneAskMary,she_____haveone.
3.A:_____youhelpmedotheshopping?
B:OK,sure.
4.A:_____yousweepthefloor?
B:ButI_____finishmyhomeworkfirst.