811.May I smoke here?
If you ______,choose a seat in the smoking section.
A.should
B.could
C.may
D.must
812.________ fired,your health care and other benefits will not be immediately cut off.
A.Would you be
B.Should you be
C.Could you be
D.Might you be
811.答案是D;根据语境可知，此处应选must，否定回答用needn't。
812.答案是B;与将来事实相反，Should you be fired=If you should be fired万一你被解雇的话。
