Sometimes people have no belief ________ his choices about their eating habits.
| A．on which to base | B．which to base on | C．to base on | D．to be based on |
__________ the crisis of economy getting more and more serious, the government is searching for ways to improve people’s life.
| A．As | B．For | C．With | D．On |
He is no longer in good condition, and his ability to work is limited. I _______ him to give up the job but failed.
| A．suggested | B．persuaded | C．tried to persuade | D．managed |
---Shall I keep an eye on your house when you are on holiday? ---________.
| A．It’s up to you | B．Of course you should |
| C．If you should like | D．I would appreciate that |
The new road is __________ of the old one.
| A．more than three times the length | B．three times more than the length |
| C．more than the length | D．more three times than the length |
Electronic devices such as iPods and headphones can do great harm to our hearing if _______ improperly.
| A．being used | B．used | C．to be used | D．having been used |