问题描述：
1.There was plenty of time.you____ A.mustn't hurry B.mustn't have hurried C.needn't hueey
2.--___ I go back before lunch?--No,I don't think you____. A.Need...must B.Do...need C.Must...have to D.May...ought to
3The teacher__do all the exercises, but a pupil___.A.needn't...must B.may not...must C.needn't...needn't D.can't.must
4.--Would you open the window please? --Yes, I ___. A.will B.would C.do D.can
5.A lion ___ only attacks a human being when it is hungry. A.should B.can C.will D.shall
6--____ Must I finish this novel this morning ? ---No,you_____. A.mustn't B.might not C.don't have to D.can't
2.--___ I go back before lunch?--No,I don't think you____. A.Need...must B.Do...need C.Must...have to D.May...ought to
3The teacher__do all the exercises, but a pupil___.A.needn't...must B.may not...must C.needn't...needn't D.can't.must
4.--Would you open the window please? --Yes, I ___. A.will B.would C.do D.can
5.A lion ___ only attacks a human being when it is hungry. A.should B.can C.will D.shall
6--____ Must I finish this novel this morning ? ---No,you_____. A.mustn't B.might not C.don't have to D.can't
问题解答：
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