He can______to get us some tickets; I always trust him.
| A．try | B．attempt | C．manage | D．succeed |
Some countries have banned smoking in public places ______ public health.
| A．improve | B．to improve |
| C．improving | D．improved |
Mr. Smith had to go to work by bus this morning as his car ______.
| A．would repair |
| B．was repairing |
| C．had been repaired |
| D．was being repaired |
Food and fruit are forbidden in the library, ______ you are allowed to have drinks and sweets with you.
| A．and | B．but | C．so | D．or |
Being ______ highly skilled reader is ______ key to becoming successful in the Information Age.
| A．a; 不填 | B．不填; a |
| C．the; a | D．a; the |
—Do you have jobs in your company?
—I’m afraid not. _____, we’ll tell you.
| A．If necessary | B．If any |
| C．If so | D．If possible |