The survey __________ our school last month shows that about 2 percent of the students are addicted to Internet games.
A．conductedB．having been conductedC．conductingD．to be conducted
A
動詞conduct與主語the survey之間存在著動賓關(guān)系，所以需用被動形式，依據(jù)last month可知，該動作發(fā)生在過去，排除CD。而B項答案不能作定語。conducted在此作定語，相當于which was conducted。
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