-What will John Smith be doing in the fall of this year? -_________ mathematics at a high school.
A. Teaching
B. To teach
C. Be teaching
D. Teach
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-Better not have the operation right now. -________.
A. I mustn’t
B. I shouldn’t
C. I won’t
D. I can’t
Taking such kind of medicine, if _______ , will possibly do you great harm.
A. continue
B. to continue
C. continued
D. continuing
He is not easy to get along with, but the friendship of his, _________, will last forever.
A. once gained
B. to be gained
C. after gained
D. while gaining
-Don’t forget to take the message to my teacher. -_________.
A. Yes, I will
B. No, I won’t
C. I don’t think so
D. Sorry, I don’t