Sometime is knocking at the door. Who ______ it be? --It ______ be Tom. He is still in the school.
A.can; can’t | B.can; mustn’t | C.might; could | D.might; may |
Sometime is knocking at the door. Who ______ it be? --It ______ be Tom. He is still in the school.
A.can; can’t | B.can; mustn’t | C.might; could | D.might; may |