--- Who__________ it be that is knocking at the door?
--- It ____________ be Father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
Mary worked here as a ____ secretary and ended up getting a full-time job with the company.
| A．pessimistic | B．temporary | C．previous | D．cautious |
---You haven't lost the concert ticket, have you?
--______. I know it is not easy to get another one at the moment, but nowhere can I find it．
| A．No, I haven't | B．I don't hope so | C．Yes, I'm afraid so | D．I hope not |
— My sons are not a little restless．
— Oh? Boys _______ be boys．
| A．should | B．can | C．may | D．will |
Mary said that once ________ him you would like him and make friends with him.
| A．meet | B．to meet | C．meeting | D．met |
–Why must you go shopping in such weather?
–My coffee has _____.
| A．run out of | B．given out | C．given away | D．used up |