There is someone knocking at the door. __________ it be Tom?
A: Can
B: Must
C: Should
D: Ought
A: Can
B: Must
C: Should
D: Ought
举一反三
- Someone is knocking at the door. Who________ it be? A: can B: may C: must D: will
- "Someone is knocking at the door." "Who can __ be?"
- Someone is knocking at the door. It ______ my mother. It's time for her to be back. A: can be B: may not be C: must be D: mustn't be
- "Someone is knocking at the door.""Who can __ be?" A: he B: she C: it D: they
- It sounds ________ someone is knocking at the door. A: as B: if C: as if D: as that