—Why are you late again?
—Something happened to our friend Wang Fei. I _____ to help him.
| A．did refuse | B．needn’t have refused |
| C．couldn’t well refuse | D．did not say no |
I thought things would get better, but _______ it is they are getting worse.
| A．before | B．because | C．as | D．after |
The dull wetland _______ the moment the first ray of sunlight shines on it. Thousands of creatures living in it wake up and begin their life of a new day.
| A．stays alive | B．begins to live | C．makes a living | D．comes to life |
Experts say walking is one of the best ways for a person to _______ healthy.
| A．handle | B．stay | C．maintain | D．reserve |
_______ unexpected heavy rain usually causes _______ great change.
| A．The; the | B．An; 不填 | C．An; the | D．The; a |
---It’s getting late. I am afraid I must be off now.
---_______!
| A．Go slowly | B．So long | C．No problem | D．All right |