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 |
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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 |
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