_____ wants to study well must learn things ______ .
A.No matter who; with heartB.Who; with his heartC.Whoever; by heartD.Whoever; by his heart
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C解析该题考查no matter who和whoever的区别，no matter who(无论谁)只能引导让步状语从句，而whoever既能引导让步状语从句，又能引导主语从句。本句是一个主语从句，因此只能用whoever。第二个空是一个固定词组learn something by heart。