She has already tried her best. Please don't be too _____ about her job.
| A．special | B．Responsible |
| C．unusual | D．particular |
_____, I couldn’t find a solution to the problem.
| A．Might I as try | B．As I might try | C．I might as try | D．Try as I might |
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 _____ in 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 |