问题
选择题
—________ I swim here?
—I'm sorry. Children _______ swim alone here.[ ]
A. Must, can't
B. May, must
C. Can, mustn't
D. Can't can
答案
答案:C
—________ I swim here?
—I'm sorry. Children _______ swim alone here.[ ]
A. Must, can't
B. May, must
C. Can, mustn't
D. Can't can
答案:C