It ________ snow later. I’m not sure.
A: can
B: could
C: can’t
A: can
B: could
C: can’t
举一反三
- It__snow later.I'm not sure. A: can B: could C: can't D: couldn't
- I'm a bit tied-up at the moment. I ______ be able to see you later but I'm not sure yet. A: must B: can't C: have to D: might
- — 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
- It can't be my dad. A: I'm sure he is not my dad. B: It's my dad. I can't believe it.
- I'm not sure whether I can gain any profit from the investment, so I can't make a (an) ______ promise to help you. A: accurate B: defined C: definite D: sure