Be careful not to drive so fast, ____you will be fined by the police.
| A．or | B．and |
| C．so | D．till |
An expert was _____ to give a speech on how to learn English well.
| A．brought in | B．brought on |
| C．brought out | D．brought up |
Scientists have made a major ____ in cancer research.
| A．break-in | B．breakthrough |
| C．breakup | D．breakdown |
His success _______ his hard work.
| A．results in | B．results from |
| C．lies on | D．roots in |
He slipped and had his leg broken. _______, he will have to be away from school for two or three months.
| A．In any case | B．After all |
| C．As a result | D．In this way |
It will make no difference whether our pay will be _______ 5% this year.
| A．risen by | B．raised by | C．raised to | D．risen to |