Could you please tell me______to repair our fax machine?A.how much it costsB.how much cost

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Could you please tell me______to repair our fax machine?

A.how much it costs

B.how much cost is

C.how much costs it

D.how much does it cost

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。