831.It's hard to believe that Jack ______ have fought with the policeman.
Yes.If one ______ ask for trouble,it can't be helpd.
A.would;will
B.must;may
C.should;must
D.need;dare
832.In such dry weather the flowers will have to be watered if they _____.
A.have survived
B.would survive
C.are to survive
D.should survive
831.答案是C;句中should竟然；must偏要，非要。
832.答案是C;此题中动词用的是真实语气，故选C。
