The problem was raised we should get all the machines. A. that/ to repairB. which/ repair

问题补充：

The problem was raised we should get all the machines.

A. that/ to repair

B. which/ repaired

C. where/ to be repaired

D. when/ repaired

答案：

A. that/ to repair

B. which/ repaired

C. where/ to be repaired

(答案→)D. when/ repaired

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