(　　)11. —Mum, may I go to the party with my friends tonight? —Yes, you 　　　　. But you 　　　　be back by

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(　　)11. —Mum, may I go to the party with my friends tonight?
—Yes, you 　　　　. But you 　　　　be back by 10:00 p.m. 
A.can; may      B.must; have to       C.may; must        D.can; can
(　　)12. —Among these films, have you decided 　　　　first? 
—Not yet. Could you give me some advice?
A.how to watch                      B.which to watch
C.when to watch                      D.where to watch
(　　)13. —　　　　 I begin to sweep the floor now? 
—No, you 　　　　. You can have a short rest. 
A.May; needn’t                     B.Must; don’t have to
C.Can; couldn’t                     D.Must; can’t
(　　)14.—Daniel, do you know that bees never get lost?
—Yes. Bees always remember 　　　　the same way as they went. 
A.come back                         B.came back
C.coming back                     D.to come back

答案.11.C　12.B　13.B　14.D