题目

— Have you seen______ pen? I left one here this morning.— Is it___________ black one? I think I saw it somewhere.A．the; the B．a; aC．the; aD．a; the 答案：B 解析:考查冠词用法。两个空缺处均是泛指，且都是以辅音因素开头的单词，故答案选B。

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