问题
Look, the man looks like Mr. Brown.— It ________ be him, for he ________ Australia since last Thursday and hasn’t returned.
A:can’t; has gone to
B:mustn’t; has gone to
C:may not; has been in
D:can’t; has been in;
B:mustn’t; has gone to
C:may not; has been in
D:can’t; has been in;
正确答案是：
