28. We have to set a definite date for the concert. The underlined word means _____.
| A．fixed | B．clear | C．sure | D．Certain |
. Driving a car without insurance can have _____ consequences.
| A．uncertain | B．disastrous | C．potential | D．unworthy |
. Probability is the mathematical study of the _____ of an event’s occurrence.
| A．desire | B．likelihood | C．result | D．effect |
. New mineral resources may be discovered during the forthcoming Antarctic _____.
| A．excursion | B．execution | C．extraction | D．expedition |
The government’s strong action demonstrated its _____ to crush the rebellion.
| A．energy | B．resistance | C．courage | D．determination |
. Jim was so badly burnt that at first they began to _____ of his life.
| A．despair | B．designate | C．disappoint | D．despise |