Don’t put your hand out of the car window, ______ you will be hurt by the passing traffic.
| A．but | B．so | C．and | D．or |
I think this small house is a comfortable place .
| A．to live | B．living | C．to live in | D．living in |
We are busy__________ the final exams.
| A．to prepare for | B．preparing for | C．preparing | D．preparing with |
Lucy fell asleep_______ she was listening to music.
| A．before | B．while | C．after | D．as soon as |
The books you donated are used to _____ children in need.
| A．help | B．helped | C．helping | D．helps |
His father seldom goes shopping, _______?
| A．is he | B．doesn’t he | C．does he | D．isn’t he |