单项填空
1. It's a common _________ for young people to pay a New Year's visit to their elders.
A. sense B. practice C. rule D. scene
2. Mr. Hoffman, aged over 60, has recently __________ playing golf at the weekends, contributing to his rosy face.
A. taken to B. slid into C. submitted to D. broken into
3. __________ his body and soul to bringing up-to-date technology and international attention to China's Aids problem, Dr David Ho, born in Taiwan, spent little time with his family.
A. Devoted B. To devote C. Being devoted D. Devoting
4. In freezing weather, snow __________ turn into ice, which is easy to __________.
A. may; be slipped B. can; slip C. can; slip on D. must; slip on
5. I smoke out of _________ habit, not for _________ pleasure; for I have been in the habit for more than twenty years.
A. the; a B. 不填; the C. a; the D. 不填; 不填
6. — Remember how we met for the first time, Dick?
— Of course I do. You _________ to the teachers' office hurriedly and _________ me.
