We work together to achieve our common purpose: _________world that is safer, cleaner and healthier than ________ one we found.
| A．the; the | B．a; / | C．a; the | D．the; / |
One may never know the of knowledge without being educated.
| A．power. | B．force. | C．energy. | D．strength. |
This is the first time we a film in the cinema together as a family
I mention it I feel very happy.
| A．see; time | B．had seen; for the time |
| C．saw; the time. | D．have seen; the time. |
Tom’s pay depends on the factory.
| A．he plays in what part. | B．he plays what part in. |
| C．what part he plays in. | D．in what part he plays. |
The government has taken some measures to solve the shortage of water, but it may be some time __the situation improves.
| A．since | B．when. | C．unless. | D．before. |
After driving for thirty miles. he suddenly realized that he in the wrong direction.
| A．had been driving. | B．had been driven. |
| C．has been driving. | D．was driven. |