问题
选择题
—_____ I swim in that river?
—No, you ______. It's dangerous to swim in it.[ ]
A. Must; can't
B. can't; may not
C. May; mustn't
D. Must; needn't
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—_____ I swim in that river?
—No, you ______. It's dangerous to swim in it.[ ]
A. Must; can't
B. can't; may not
C. May; mustn't
D. Must; needn't
答案：C