_________, the car could not be started.
| A．Having lost the key | B．He lost the key | C．The key was missed | D．The key lost |
Paper bags produced every year are ____ the world’s production of vehicles.
| A．three times weight of | B．three times the weight of |
| C．as three times heavy as | D．three times as heavier as |
You have a big mouth, Li Fei. You ________ have told everybody the secret.
| A．can't | B．mustn't | C．shouldn't | D．mightn't |
To know more about Japan's recent claims about Diaoyu Islands, you can use the Internet or watch CCTV news, or．
| A．both | B．none | C．some | D．Neither |
The exam poster will beon Friday afternoon．
| A．put off | B．put down | C．put up | D．put away |
Hurry up! Flight 4406off at 18:40.
| A．takes | B．took | C．will be taken | D．has taken |