-Tom didn’t pass the exam. he failed the exam did he realize the importance of h
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—Tom didn’t pass the exam. _____ he failed the exam did he realize the importance of hard work.
—I think the result is a good lesson to him. ______ should he waste so much time playing computer games.
A．Not until; In no case B．Not until; In this case
C．Only before; In this case D．Only before; In no case
试题答案
A