much money___ to the project to help improve their living conditi_英语解答

much money___ to the project to help improve their living conditions since 2006.
A.is devoted b.has been devoted c.has devoted d.had devoted

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解答

答案：B
解析：由“since 2006”可看出,应用现在完成时,排除 A D（D为过去完成时）
此外,devote捐献应用被动,排除 C
所以,选 B