13. ____________ ______ morphemes consist of the functional words in the language such as conjunctions, articles, prepositions and pronouns.
举一反三
- Functional words include adverbs, prepositions, conjunctions, and pronouns.
- Conjunctions, prepositions, articles and pronouns are ____ class words, because the number of these words usually do not change.
- Pronouns, prepositions, conjunctions and articles are closed-class words.
- Pronouns, prepositions, conjunctions and articles are all open class items. （ ）
- Words like pronouns, prepositions, conjunctions, articles are ______ items. （ ） A: open-class B: closed-class C: neither open-class nor closed-class