题目内容
【题目】He spends as much time as he can (do) his homework.
【答案】doing
【解析】句意：他尽可能花多的时间做作业。spend+时间/钱+（in） doing sth。故填doing。
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题目内容
【题目】He spends as much time as he can (do) his homework.
【答案】doing
【解析】句意：他尽可能花多的时间做作业。spend+时间/钱+（in） doing sth。故填doing。