—Bad luck. My puter doesn’t work. —Why not turn to John? No one can match him in our class when it __________repairing puters.A.es toB.leads toC.contributes toD.attends to
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A解析本题考查动词短语。when it es to sth/dong sth中的“to”不是不定式中的to,而是作为介词,后面直接接名词或动名词的,表示“当谈及……”的意思。