It is imperative that you ___ on time.
A. are
B. will be
C. be
D. would be
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It is time we ___ up our results.
A. sum
B. summed
C. will sum
D. would sum
If the doctor had been available, the child ___.
A. would not die
B. would not have died
C. could not die
D. could not have died
Dr. Bethune worked hard as if he ___.
A. never had felt tired
B. had never felt tired
C. never felt tired
D. was tired never
I enjoyed the movie very much. I wish I ___ the book from which it was made.
A. have read
B. had read
C. should have read
D. am reading
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