Mr. Smith is waiting to see you. He appears to be quite important person.A. /; anB. A; an

Mr. Smith is waiting to see you. He appears to be quite important person.
A. /; an
B. A; an
C. The; the
D. The; /

A. /; an(答案→)B. A; anC. The; theD. The; /解析：考查冠词。不定冠词a/an表示泛指，意为“一个，某个”；定冠词the表示特指，意为“这个，那个”。a Mr. Smith意为“一个叫史密斯的先生”；泛指“一个急躁的人”，用不定冠词，important首字母发音是原因，用an。故选B。

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