14.—— we swim in that river?——No,you .It’s dangerous to swim there.— we swim in that river?—No,you .It' s dangerous to swim there.A.Must; can't B.Can; may notC.Shall; don't D.May; mustn't

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14.—— we swim in that river?——No,you .It’s dangerous to swim there.
— we swim in that river?
—No,you .It' s dangerous to swim there.
A.Must; can't B.Can; may not
C.Shall; don't D.May; mustn't

D,mustn't 表示不许.

C. Shall; don't

D

D