—Is Mr. Wang still teaching in this school?
—I’m afraid not. He is said _______ the school as he was diagnosed with liver cancer.
A. to have left B. to have been left
C. to leave D. to be left
—Can you tell me what time the flight to Detroit leaves?
—I’m sorry, but it _______________.
A. has been canceled B. had been canceled
C. has canceled D. had canceled
Even if there is no scientific proof secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk.
A. which B. that C. when D. where
It is only when you nearly lose someone _____ fully conscious of how much you value him.
A. do you become B. then you become
C. have you become D. that you become
John thinks it won’t be long _________ he is ready for his new job.
A. when B. after C. before D. since
The lawyer listened with full attention, __________ to miss any point.
A. not trying B. trying not
C. to try not D. not to try
