(2013·安徽名校联考Ⅱ)—You've dropped “s” in the word “acros”—Oh, letter “s” should be doubled

(2013·安徽名校联考Ⅱ)—You've dropped “s” in the word “acros”．
—Oh, letter “s” should be doubled like this “across”．
A. a; a
B. an; a
C. an; the
D. the; the

A. a; aB. an; a(答案→)C. an; theD. the; the解析：C　句意：“这个单词(acros)你漏写了一个(s)。”“噢，那个字母(s)应该双写，写成(across)。”第一空用不定冠词表示one之意，且字母“s”(/es/)以元音音素开始，故与an连用；第二空后的letter “s”特指上句中的“s”，故与定冠词连用。

谢谢了