高中英语语法题,A study in Britain__on under 25s showed that special writing classes were necessary at school.A.carried out B.being carried out C.don't they D,having been carried out
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高中英语语法题,
A study in Britain__on under 25s showed that special writing classes were necessary at school.
A.carried out B.being carried out C.don't they D,having been carried out
A 修饰study（被实施）
你这题有问题
答案是D考查非谓语 表示主动被完成，不懂继续问