By the time he was seven he had learned _____ 2000 English words.
A．a(chǎn)s much asB．so much asC．a(chǎn)s many asD．so many as
C

試題分析：句意：到他七歲的時候，他已經(jīng)學會了差不多2000個英文單詞。as much as和as many as都表示差不多，“單詞”是可數(shù)名詞，所以用as many as，選C。
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