Thesyntacticrulesofanylanguageare______innumber.
C
对于任何一种自然语言，一套句法规则可以产生出无穷多的句子，也就是说，任何语言的句法规则都是有限的，而说话人能够说出和理解的句子的数量是无限的。
Johnsonwas________unknownbeforerunningforthepresidency.
Johnson was ________ unknown before running for the presidency.
He talked a lot about things and persons ________they remembered in the school.
______ of a sentence depends on the context in which the sentence is uttered.