It took us several hours to make the old man ________ of the safety of travelling by air.
A. believed B. convincedC. informed D. persuaded
No one can ________ how the election will turn out，as there are many unknown facts.
A. protectB. prepareC. prevent D. predict
Anyone who is in ________ of weapons without permission is considered lawbreaking.
A. command B. controlC. charge D. possession
All the students are looking forward to the first ________ to take the College Entrance Examinations.
A. measure B. attempt C. purposeD. desire
--– Who should be responsible for the accident?
--– The boss, not the workers. They just carried out the order ________.
A. as told B. as are told C. as telling D. as they told
Mary failed the driving test again．If she ________ harder, she ________ the test easily．
A. practiced; would pass
B. had practiced; would pass
C. had practiced; would have passed
D. should practice; should have passed
