填空题
Grammar is a description of the（）of a language and the way in which linguistic units such as words and phrases are combined to produce sentences in the language.
structure
填空题 There is a lack of consistency between（）and pronunciation in English.
填空题 Animal is a super-ordinate term, while cow, horse, pig, dog, cat, etc. are（）.
填空题 （）refers to varieties of language defined by their topic and context of use.
