题目内容
【题目】Mary is a kind girl. She often tries her best ________ me when I am in trouble.
A.to helpB.helpingC.helpD.helped
【答案】A
【解析】
略
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题目内容
【题目】Mary is a kind girl. She often tries her best ________ me when I am in trouble.
A.to helpB.helpingC.helpD.helped
【答案】A
【解析】
略