Every possible means ________ to prevent the air pollution, but the sky is still not clear.
| A．is used | B．are used | C．has been used | D．have been used |
They carried out an assessment of the project this morning and the results will be assessed ______.
| A．on time | B．after time | C．before time | D．over time |
The company in our city ______ those big investors from the West.
| A．has a link with | B．has a hand in | C．is in line with | D．is in charge of |
Fully __________ looking after three children at home, she no longer has time to enjoy the various activities in the club.
| A．attached | B．occupied | C．contributed | D．devoted |
Though the aerospace industry has made greater progress in China, the scientists will not _________ themselves ___________ this status.
| A．resign; to | B．sign; for | C．design; for | D．resign; for |
—Journalists have to work very quickly in order to ________.
—I know. I like that. It’s very challenging.
| A．earn a high salary | B．meet their deadlines |
| C．avoid being fired | D．make both ends meet |