Must I sweep the floor at once?
No, you . You may do it later.( )
mustn' t
can't
shouldn' t
needn't
The toys are really old,_____I still want to keep them.( )
A.orB.andC.but
We should brush our_____every day.( )
A.toothB.teethC.hand
Yuan Longping is very creative. We all look up to_____.( )
A.itB.himC.her
We can't see_____sun at night.( )
A.aB.anC.the
A lot of trees ____________ every spring in Yiyang city. ( )
A.plantB.is planted
C.are planted