I didn’t go to bed _______ my sister came back.
| A．because | B．until | C．if | D．but |
Could you tell me ________________? I want to call her now.
A. where was Cathy B. what Cathy’s telephone number is C. how Cathy was
---Where are your parents?
---They ______ to England.
A. have goneB. have beenC. had gone
The building is so old that it should be ______ at once .
A. sold outB. broken down C. pulled down
Many advertisements ______ teenagers.
A. are used for B are filled with C are aimed at
More than 100 workers _______ from the Wangjialing Coal Mine last year.
A. saved B. are saved C. were saved