20．___________most of the people believed the Bears would win, the result came as the opposite.
| A．If | B．While | C．Unless | D．Since |
No matter where he is, he makes _________ a rule to go for a walk before breakfast.
| A．him | B．this | C．that | D．it |
There is no point arguing about what ________ the accident. I’d rather you _________ the victims of it.
| A．led to; focus on | B．led to; focused on |
| C．caused; focus on | D．caused to; focused to |
----You’re coughing badly, Martin. Why not give up smoking?
---Give up smoking? Easier said than done, Amy. Once you ________ the habit of smoking, it is very hard for you to _______ .
| A．keep up; break it away | B．take up; drop it out |
| C．pick up; get rid of it | D．build up; do away with it |
I regret _______ that I’m busy ______ my lessons.
| A．to say; to prepare | B．to say; preparing |
| C． saying; to prepare | D．saying; preparing |
I’d rather ________ at home than _________ out in such bad weather.
| A．Staying; going | B．staying; go |
| C．stay; go | D．stay; going |