- Someone is knocking at the door. - It
题型:选择题
问题:
- Someone is knocking at the door.
- It ______ be Tom. He is still in the school.
A.can’t
B.mustn’t
C.couldnot
D.might; not
- Someone is knocking at the door.
- It ______ be Tom. He is still in the school.
A.can’t
B.mustn’t
C.couldnot
D.might; not