A.consistent B.continual C.continuous D.numerous
单项选择题The United Nations Conference on Global Environment, which took place earlier this year in Vienna, was a very() meeting.
A.productive B.communicative C.aggressive D.protective
单项选择题We watched the plane()behind the clouds.
A.disappearing B.disappeared C.diving D.dived
单项选择题Pipes made of plastic are now widely used in building as they are light and do not become ()in water.
A.ripe B.instant C.rotten D.mature
单项选择题They were under the()that the company was doing well, but in fact it was in serious trouble.
A.conclusion B.expression C.enjoyment D.illusion
单项选择题This lovely old town has a()you couldn't find in a big city.
A.condition B.standard C.situation D.charm
单项选择题The starter (赛跑发令员) gave the() for the race to begin.
A.advice B.signal C.glow D.attention
单项选择题The football match had to be()owing to (由于) the bad weather.
A.cancelled B.advanced C.arranged D.held
单项选择题Jessica()her father on the knee and asked him not to worry about his health.
A.patted B.struck C.stroked D.paced
单项选择题Having()the bear in the woods for one week, the man was almost out of food.
A.caught B.shot C.trailed D.seeking
单项选择题Some of the passengers escaped serious ()in the traffic accident.
A.enquiry B.wound C.inquiry D.injury