问题

The survey ________ in 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

正确答案是：

同类题型

According to the survey, two thirds of the area__________covered by trees now and 90% of the population__________contributions to the Greening Project in the city

Thousands ofchildren saidthey were forced to practice the piano.

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ss exploded with anger and asked him to leave inno time;,he was fired

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