The survey our school last month shows that about 2 percent of the students are addicted

问题补充：

The survey our school last month shows that about 2 percent of the students are addicted to Internet games.

A. conducted

B. having been conducted

C. conducting

D. to be conducted

答案：

(答案→)A. conducted

B. having been conducted

C. conducting

D. to be conducted

解析：动词conduct与主语the survey之间存在着动宾关系，所以需用被动形式，依据last month可知，该动作发生在过去，排除CD。而B项答案不能作定语。conducted在此作定语，相当于which was conducted。

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