There is Mr. Smith at the door who wants to speak to you.A. a someB. certainC. some aD. a

发布时间:2020-08-17 06:40:56

There is      Mr. Smith at the door who wants to speak to you.
A. a some
B. certain
C. some a
D. a certain

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A. a some
B. certain
C. some a
(答案→)D. a certain
解析:句意:在门口有位想要跟你说话的史密斯先生。certain某,某一; a certain Smith 一个叫做史密斯的人。some〔用于单数普通名词前〕(有)一个(人、物、时间)。 He went to some place in Africa. 他到非洲一个地方去了。We must find some way out of it. 得想一个方法逃脱才行。some 是指完全不知道的事物而言, a certain 则是在知道而故意不说时、或轻蔑地说‘某一个…’时用,故选D。
考点: 考查不定代词的用法。
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