a fire, hotel guests are asked to remain calm.
| A．As a result of | B．In the event of | C．By reason of | D．In the time of |
I was on the point of talking to the professor when John .
| A．cut off |
| B．cut in |
| C．cut up |
| D．cut down |
It is said that he will his business to his son when he retires.
| A．hand in |
| B．hand out |
| C．hand over |
| D．hand up |
When he was 20 years old, he a doctor in the village.
| A．was |
| B．became |
| C．turned |
| D．changed |
Look! Several people in the crowd seemed .
| A．to be fighting |
| B．to have fought |
| C．being fought |
| D．having fought |
Do I have to take this medicine? It so terrible.
| A．is tasted |
| B．is tasting |
| C．tastes |
| D．has tasted |