Is that Mary over there?
It _____ be her. She has gone to Kunming.( )
A. |
may |
B. |
must |
C. |
can't |
D. |
mustn't |
Is that Mary over there?
It _____ be her. She has gone to Kunming.( )
A. |
may |
B. |
must |
C. |
can't |
D. |
mustn't |