问题
That black T-shirt which has Messi’s picture on it______be David. He admires him a lot.— It _____ be his. He prefers black to other colours.
A:must, can’t
B:may, can’t
C:may, must
D:must, mustn’t;
B:may, can’t
C:may, must
D:must, mustn’t;
正确答案是：
