He must have attended the meeting yesterday,___________ he?
| A．didn't | B．mustn't | C．needn't | D．hasn't |
________ and we’ll get everything ready for the taking off.
| A．Have one more hour |
| B．One more hour |
| C．Give one more hour |
| D．If we have one more hour |
Not until we have had a chance to discuss it thoroughly ________ perfectly.
| A．the problem has been settled |
| B．has the problem been settled |
| C．will the problem be settled |
| D．the problem was settled |
—Have you been to the Great Wall?
—Perhaps not in my memory.________，it might have been during my early childhood.
| A．If any | B．If so |
| C．If ever | D．If not |
More than a dozen students in that school ________ abroad for further study every year.
| A．sent | B．are sent |
| C．have been sent | D．have sent |
—Mum，I am afraid I won’t do well in the coming test.
—Honey，________more careful，________you will make it.
| A．is；so | B．be；and |
| C．be；then | D．being；and |