______adequate precautions are taken, there is no risk involved in the operation.
A．Although
B．Providing
C．Nevertheless
D．Even

未分类题He wont go back to Hong Kong next month. If he______to go back to Hong Kong, he______courses at Cornell Universitys Hotel School.A．were, could not takeB．were, could have not takenC．had been, could not takeD．had been, could have not taken

未分类题In a different political situation, workers______the right to go on strike.A．have not gottenB．have gottenC．might not have gottenD．might have gotten

未分类题It was the drug, not the disease, that killed him. He______alive today if he ______that drug.A．would still be, didn't takeB．would still have been, had not takenC．would still be, had not takenD．will still be, doesn't take

未分类题The products of the chemical industry make a major contribution to present-day standards of living, and life today______impossible without these products.A．isB．has beenC．would beD．would have been

未分类题If John were to resign and if Henry were elected to take his place, we______ more vigorous leadership.A．have hadB．should have hadC．should haveD．had

未分类题Jenny Edward divulged her intention of trying vaccination under a bond of secrecy because she feared ridicule if they______.A．have failedB．should failC．failedD．being failed

未分类题If oil______on the frozen north coast in the 1960s, an 800-mile pipeline would not have been constructed to bring it to the south coast.A．was not discoveredB．was discoveredC．had not been discoveredD．had been discovered

未分类题She claimed that he______able to give more intimate details if he had been properly qualified.A．have beenB．should have beenC．wereD．should be

未分类题Letters of recommendation received after the first of the month will not be reviewed by the admissions officer______ to your file.A．assignedB．assigningC．being assignedD．to assigning

未分类题They couldnt imagine his______to participate in the fall-recess outing.A．not to wantB．to not wantC．not wantingD．not want

未分类题They will continue______seven days a week until the building is finished.A．to workB．to workingC．workD．worked

未分类题Houseplants ______ constant attention are not suitable for working couples with little spare time.A．requiringB．to requiringC．requiredD．being required

未分类题【C2】A．only ifB．much asC．long beforeD．ever since

未分类题Contrary to the opinion of the members, the president should appoint______he thinks can do the job the most adequately.A．anyoneB．whoeverC．oneD．whom

未分类题The mad man was put in the soft padded cell of the hospital lest he______himself.A．injureB．had injuredC．injuredD．would injure