问题
选择题
We can’t use the machine now, for it _______.
A．has been repaired
B．is repairing
C．is repaired
D．is being repaired
答案
答案：D
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We can’t use the machine now, for it _______.
A．has been repaired
B．is repairing
C．is repaired
D．is being repaired
答案：D