_ on twice,he was cured at last.

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_ on twice,he was cured at last.
A,operating.
B,having been operated on.
C,operated on.
D,being operated

答案：B
翻译：动过两次手术后,他最终被治愈了.
1.固定短语operate on sb,所以句子主语he和operate on之间为动宾即被动关系.
则该状语必须选用被动结构来表达,由此排除主动的A；
D中缺少介词on,排除.
2.根据句意,be operated on动作发生在谓语动作was cured之前,所以选用having been done结构来表示这两个动作的先后关系,由此排除C.

At last,he came up to the teacher,_ what he had was wrong . The boy was badly ill ,_,he went to school at last?A and B h （）Tom put on a Halloween ghost costume last year.He was so _ I went to school on foot yesterday.He was at home last night He was tried twice,and he is asked to have _ third try. He was tried twice,and he is asked to have _ third try.A.the He _ Water World twice last week A has been to B has gone to At last the headmaster (_)宣布 Class Three was first. He (r_ _ _ _ _) stayed at home last night. _(be) he at the camp last week? the lecture on smoking was over at last什么意思 My last appoint at the dentist was on Monday