（2012陕西卷）No matter where he is, he makes _____a rule to go for a walk before breakfast.
A. him B this C. that D. it
So far, scientists
haven’t found any evidence of water that ______ life on Mars.
| A．holds | B．raises | C．brings | D．supports |
---Are you fond of Liu Qian’s performance on the eve of the Spring Festival?
--- No._______. .
| A．Not to worry | B．That’s not the point. |
| C．I’ve got no idea. | D．It’s not my cup of tea. |
Professor White has written some short stories, but he is _________ known for his plays．
| A．the best | B．more | C．better | D．the most |
Ladies and gentlemen, please fasten your seat belts．The plane ________．
| A．takes off | B．is taking off | C．has taken off | D．took off |
．He is always ready to help others, seldom, ______, refusing them when they turn to him．
| A．if never | B．if ever | C．if any | D．if not |