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— You’ve dropped ________ “s” in the word “necessary”.
— Oh, ________ letter “s” is doubled.
A.a; a B.a; theC.an; theD.the; the
C
考查冠词的用法。怎么s的发音是元音,即/es/,故用an来修饰;特指necessary中的“s”要用the。故选C。
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