【題目】It’s important us the teacher carefully in class.

A.for; to listenB.of; to listenC.for; that listen

【答案】A

【解析】

句意:在課堂上仔細聽老師講課對我們很重要。

考查固定句型。It is+形容詞+of/for sb. to do sth. 后面的動詞不定式是真正的主語。如果句型中的形容詞用來形容人的,就用of,否則就用for。此處的形容詞important不能用來形容人,因此用介詞for。故選A

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