Li Ming is said ______ the experiment in the lab, but I can’t find him there.A．t_刷题宝

题干

Li Ming is said ______ the experiment in the lab, but I can’t find him there.

A．to have done

B．to do

C．to be doing

D．doing

上一题下一题 0.85难度单项选择更新时间:2010-05-12 10:21:22

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