Chinese vessels ________ 646,000 square kilometers in the southern Indian Ocean in search of the missing Malaysian flight MH370.
| A．have covered | B．have looked | C．has travelled | D．had searched |
-- How about 280 yuan? That’s my final offer.
-- _____ I sell it to you just at the cost price this time for your future visit to my shop.
| A．What for? | B．You win. |
| C．No comment. | D．Out of the question. |
—The game will certainly be exciting. Shall we meet at seven at the entrance to the gym?
— ________. But how can I get there?
| A．That’s all right | B．That’s right |
| C．I’m all right | D．All right |
When _______ this medicine, it is a good idea to avoid_______ alcohol.
| A．taking; drinking | B．taken; drinking |
| C．taking; to drink | D．taken; to drink |
To prevent the disease from spreading, all the infected（感染的）chicks were buried _______.
| A．alive | B．lively | C．live | D．living |
The footprints on the floor __________ that someone had broken into their house while they were out.
| A．recognized | B．forecast | C．indicated | D．observed |