The new method Mr．Wang has been devoted to effective．A.is provedB.to proveC.bein
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The new method Mr．Wang has been devoted to _____ effective．
A.is proved
B.to prove
C.being proved
D.proves
试题答案
D
考查系动词用法和句子结构。在本句中定语从句Mr．Wang has been devoted to修饰先行词the new method,横线上所填部分是谓语部分，prove effective构成系表结构。因主语是单数，故使用proves.故D正确。