有读者问： 有这样一道选择题：
(1)There is no such_________foolish person.
A. a B. an C. / D. the
该选那一个？ 选 A 对吗？
应选 C ，不宜选 A。 不定冠词 a 可用在“such+a+单数名词”结构中，如：
(2)She said she would never again make such a mistake.
(3)He is such a nice man.
但 such 之前如有 no, any, some 等不定代词，在规范英语中， such 之后则一般不再用不定冠词 a，如：
(4)There's no such thing as ghosts.
(5)She had no right to do any such thing.
(6)Some such measure will certainly be tried.
此外， such 之前如有数词 one ，其后自然也不应有不定冠词，如：
(7)We came upon more than one such family.
但在实际情况中，间或也有用不定冠词的现象，如：
(8)There is no such a thing at all.
(9)If any one asserted that there was no such a thing as the soul, what should you answer?
但我们认为 no such a... 这种用法不宜我国学生去仿效。
