Please _____________ . The class is too noisy.
A．calm downB．settle downC．come upD．a(chǎn)dd up
A

試題分析：考查詞組：A. calm down 冷靜下來，B. settle down定居C. come up提出D. add up增加，句意：請平靜下來，教室太吵了。選A。
點評：本題考查了down和up的短語辨析，不同的動詞接相同的副詞或介詞構成的短語是高考的重點，一定要加強識記和辨析。
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