. If the computer system suddenly, there will be too much trouble.
| A．breaks down | B．breaks out | C．breaks up | D．breaks in |
Trees need water to grow; _____, friendship needs our heart and passion to develop.
| A．fortunately | B．generally | C．naturally | D．similarly |
I would appreciate _____ it a secret.
| A．your keeping | B．you to keep | C．that you keep | D．that you will keep |
His plan was such a good one _____ we all agreed to accept it.
| A．so | B．and | C．that | D．as |
Most people admit _____ the fact that it is not easy _____ into a famous university.
| A．know; admit | B．knowing; to be admitted | C．know; to admit | D．to know; admitted |
You ought to be stricter _____ your son; it’s no use only being strict _____ his work.
| A．with; with | B．in; in | C．in; with | D．with; in |