题目内容
【题目】He regrets (fight) with his good friend.
【答案】fighting
【解析】fight打架（动词），regret doing sth.后悔做某事。故填：fighting。
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题目内容
【题目】He regrets (fight) with his good friend.
【答案】fighting
【解析】fight打架（动词），regret doing sth.后悔做某事。故填：fighting。