—Why do you drink so much coffee?
—Well， ______ it doesn't keep me awake at night， I see no harm in it.
| A．although | B．for |
| C．as long as | D．as far as |
The meeting was _____ when the chairman fell ill.
| A．put down | B．shut out | C．cut short | D．taken off |
The members of the club wouldn't run a ____ entrusting（委托） the organization to an unreliable person.
| A．danger | B．risk | C．hazard | D．chance |
Many new _____ will be opened up in the future for those with a university education.
| A．opportunities | B．realities | C．necessities | D．probabilities |
It isn't quite _____ that he will be present at the meeting.
| A．sure | B．right | C．exact | D．certain |
The island where these rare birds nest has been declared a _____.
| A．observation | B．reservation | C．preservation | D．conservation |