It is _______ he often fails in exams ______ makes his parents worried about him.
| A．what; that | B．that; what | C．that; that | D．because ; that |
They must have finished the work, ______?
| A．mustn’t they | B．haven’t they | C．hadn’t they | D．didn’t they |
－Is there a fog in the evening?
－There ______ be. I’ll make a phone call to find it out.
| A．must | B．would | C．will | D．might |
－The door was open.
－It ______ open. I had locked it myself and the key was in my pocket.
| A．can not be | B．must not be | C．can not have been | D．must not have been |
.－Mum, I climbed to get the Teddy Bear from the top of the shelf.
－My goodness! You ______ yourself. You ______ do that next time.
| A．must have hurt; mustn’t | B．should have hurt; can’t |
| C．may have hurt; mustn’t | D．might have hurt; won’t be able to |
－Shall I go and buy more food and drinks for the party?
－No, we have prepared a fridge of those. That ______ be quite enough.
| A．can | B．may | C．might | D．ought to |