We hope that as many as possible _______ join us for the picnic tomorrow.

A. need B. must 　C. should D. can

What a pity!Considering his ability and experience， he　　　 better.?

A.need have done　　 B.must have done?　 C.can have done　　 D.might have done

What a pity!Considering his ability and experience， he　　　 better.?

A.need have done　　　　 B.must have done?　　

C.can have done　　　　 D.might have done

— I haven’t finished my task yet.

— You shouldn’t have watched the film last night, or you _______ it by now.

A, need have finished　　　　　　　　　　　　　　　　　　　 B. may have finished

C. should have finished　　　　　　　　　　　　　　　　　　　D. will have finished

As a result of the serious flood, two-thirds of the buildings in the area　　　　　　 .

A. need to repair　　　　　 B. needs to repair

C. needs repairing　　　　 D. need repairing