—How about going hiking this weekend?
--Sorry,I prefer ________to________.
| A．to stay at home,go out | B．to go out,stay at home |
| C．staying at home,going out | D．going out,stay at home |
We decided ______at home _____ the bad weather..
| A．staying ; because | B．to stay ; because of |
| C．staying ; because of | D．to stay; because |
—____ do you exercise?
—Four times a week
| A．How much | B．How often |
| C．How long | D．How many |
—How was the weather yesterday?
—It was terrible. It rained ____. People could ____go out .
| A．hardly; hardly | B．hard; hard |
| C．hard; hardly | D．hardly; hard |
Twenty-five percent of the water in this river _____ dirty in the past.
A. is B are C. was D. were
Eating a lot of vegetables __________ good for our ________..
| A．is, healthy | B．are, healthy |
| C．are, health | D．is, health |