Question

高中英语题求解，谢谢

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？能详细说下吗？谢谢！

Answer 1

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

Answer 2

B led

因为前面不是一个完整句子，所以要用 动词的 过去分词 做状语，
因为study是被Allan引导的，所以要用被动

Answer 3

a ,被动语态was +过去分词

Answer 4

B选项。用非谓语动词，这是它做定语。