History is an interesting subject. We can learn _____ the past.
A. of B. about C. for
—Do you know ________ Simon is?
—I met him in the school library just now. He may be still there.
| A．how | B．who |
| C．where | D．what |
It’s too cold outside. I prefer staying at home ________ on such a day.
| A．to going out | B．go out |
| C．to go out | D．going out |
It is raining ________ outside. You’d better not leave now.
| A．badly | B．hardly |
| C．heavily | D．probably |
They were made ________ from time to time because Tom told many jokes.
| A．to laugh | B．laughing |
| C．laugh | D．laughed |
Be careful, ________ you will make few mistakes.
| A．so | B．and | C．or | D．but |