The importance of saving gas_______be stressed too much. Automobiles use up some 70 billion gallons of gas a year.
| A．can’t | B．mustn’t | C．shouldn’t | D．may not |
Teachers _______ be sensitive to the development level of each student so as to help them better.
| A．need to | B．may | C．are able to | D．can |
Three foreign films will be on this month. One is made in Korea, _______ two are made in England.
| A．rest | B．another | C．other | D．the other |
—No photos, please!
—______________.
| A．Don't mention it | B．I suppose not |
| C．Never mind | D．I'm terribly sorry |
Find ways to praise your children often, _________ you'll find they will open their hearts to you.
| A．till | B．or | C．and | D．But |
Only when _______ be possible to sign the papers.
| A．does the lawyer come with it |
| B．the lawyer comes will it |
| C．has the lawyer come it will |
| D．the lawyer comes it will |