It took a long time for the effective use of natural gas ______.
A.making | B.being made | C.to make | D.to be made |
Some schools will have to makein agreement with the national soccer reform.
A. | judgments | B. | adjustments |
C. | comments | D. | achievements |
The police officers decided to conduct a thorough andreview of the case.
A. | comprehensive | B. | complicated |
C. | conscious | D. | crucial |
The real reason why prices ____ , and still are, too high is complex, and no short discussion can satisfactorily explain this problem.
A.were | B.will be |
C.have been | D.had been |
The whole team _____ Cristiano Ronaldo, and he seldom lets them down.
A.wait on | B.focus on |
C.count on | D.call on |
It might have saved me some trouble ______ the schedule.
A.did I know | B.have I known |
C.do I know | D.had I known |