Words like “open”, “opens”, “opened” and “opening” share the same ____, which is postulated as the abstract unit underlying the smallest unit in the lexical system of language.
查看答案
Major lexical categories are ____categories in the sense that new words are constantly added.
"Teacher-student" is a _____ compound.
A lexeme can be understood as a family of words that differ only in their grammatical ____.
Nouns, verbs and adjectives are____words rather than function words.