No government so far has been 
able to the number of jobs available with the number of people out of work.
| A．provide | B．weigh | C．multiply | D．balance |
She felt _____ of having asked such a silly question when the audience couldn't help laughing.
| A．guilty | B．crazy | C．miserable | D．ashamed |
After a short holiday, he _____ himself once more to his studies.
| A．applied | B．converted | C．engaged | D．exerted |
The family is a cooperative enterprise for which it is difficult to _____ rules, because each family needs to work out its own ways to deal with its own problems.
| A．set up | B．put down | C．keep up | D．lay down |
Although he hasn't any formal qualifications, Betas _____ to do well for himself.
| A．managed | B．succeeded | C．arranged | D．convinced |
John always tries to _____ people who are useful to him professionally.
| A．develop | B．provoke | C．correspond | D．cultivate |