Listening attentively in class and reviewing in time _______ a sure way to improve your learning, and this is especially true _______ it comes to standard tests.
A．is, whenB．a(chǎn)re, whenC．is, whileD．a(chǎn)re, as
A
考查動名詞作主語和固定句型。動名詞作主語，謂語用單數(shù)，Listening attentively...是主語，故謂語用單數(shù)is，排除B、D；“當(dāng)提到......”用when it comes to...句型。句意“課堂上注意聽講并及時復(fù)習(xí)是一種提高學(xué)習(xí)的好方法，這個方法對標(biāo)準(zhǔn)考試特別有用。”故選A。
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