问题
It’s said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang? — Yes, it _______ him. He _______ for a week.
A:must be; has arrived here
B:Can’t; has been here
C:must be; has been here
D:maybe; has arrived here
B:Can’t; has been here
C:must be; has been here
D:maybe; has arrived here
正确答案是：
