he party was______success．We sang and danced until it came to_______end at midnight．
| A．a；an | B．a；the | C．the；an | D．／；an |
The term paper was due to December 1, but hard as he tried, he was unable to meet the _____ for it.
| A．challenge | B．need | C．deadline | D．date |
The sentence doesn’t make any , no matter how you read it.
| A．contribution | B．room | C．sense | D．use |
We need to spend more time researching these suggestions so that we can make a(n) choice.
| A．known | B．talented | C．advised | D．informed |
The only drawback of the voyage was the ______ sea, which made me very seasick.
| A．calm | B．rough | C．patient | D．tough |
At the end of the year 2010, some species of birds ddn’t survive the _____ winter in some European countries.
| A．severe | B．serious | C．mild | D．extreme |