—Tina, is that our math teacher Mr. Wang?
—It ________ be Mr. Wang. He has gone to Beijing.
A. |
must |
B. |
mustn’t |
C. |
can’t |
D. |
can |
—Tina, is that our math teacher Mr. Wang?
—It ________ be Mr. Wang. He has gone to Beijing.
A. |
must |
B. |
mustn’t |
C. |
can’t |
D. |
can |