Mary know the answer. But I'm not sure.
A: have to
B: can
C: may
D: must
A: have to
B: can
C: may
D: must
举一反三
- She ____ know the answer, but I’m not sure. A: maybe B: may be C: may D: must
- Mary know the answer to the question. I’m not sure.
- — The red dress（__）be Linda’s, but I’m not sure. — No, it（__）be. It is too small for her. A: may, mustn’t B: may, can’t C: can’t, may not D: must, can’t
- 9. I’m sorry but I may / must have lost your glasses. I’m not sure though – I’m still looking for them.______
- “Will your father stay home tonight?” “I’m not sure, He ____ to work.” A: must go B: can go C: may be gone D: may be going