【題目】Running and swimming __________ good for you.

A. be B. is C. are D. maybe

【答案】C

【解析】句意：跑步和游泳對(duì)你有好處。固定短語(yǔ)“be good for”意思是“對(duì)……有好處”，首先排除D，因?yàn)?/span>maybe是副詞；Running and swimming作主語(yǔ)，是指兩種行為，為第三人稱復(fù)數(shù)形式，故答案選C。

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