a study by Allan Lucks ,director of Big Brothers Big Sisters ,found volunteers had better health than non-volunteers .A was led B led C leading D was leading 该选择哪个?
人气：370 ℃ 时间：2020-10-02 05:37:17
解答
选B,题中已有动词found,不能出现第二个动词,只能用非谓语动词,而lead与主语是被动关系,所以选B
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