题目内容
_______ almost all our time to our schoolwork in the past three months, we have
almost no time for fun and play.
A. Having devoted B. Devoted
C. To devote D. To have been devoted
A. 考查非谓语动词。逻辑主语是we, 状语表示过去的时间in the past three months,因此用现在分词完成式。

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