14.—— we swim in that river?——No,you .It’s dangerous to swim there.

问题描述:

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.