问题补充:
—Look at the young lady in red. Is it Mrs. King?
—No, It be her. She is wearing a white dress today.
A. can
B. may
C. must
D. can’t
答案:
A. can
B. may
C. must
(答案→)D. can’t
解析:can能够,可以;may可以,可能;must必须,一定;can’t不能。句意:看这个穿红衣服的女士,是金夫人吗?——不,不可能是她。她今天穿了一件白色的连衣裙。结合语境可知选D。