We can’t go on with the experiment because the computer.A. hasn’t been repairedB. hasn’t r

问题补充：

We can’t go on with the experiment because the computer.

A. hasn’t been repaired

B. hasn’t repaired

C. is not repaired

D. hadn’t been repaired

答案：

(答案→)A. hasn’t been repaired

B. hasn’t repaired

C. is not repaired

D. hadn’t been repaired

解析：A项用了现在完成时的被动语态，意思是计算机“还未被修好”。B选项中repair为及物动词，缺宾语，填上后句子不通；C选项为一般现在时的被动语态，它只表示并不是“修过的”；D选项时态不对。