多选题There are three morphemes in the word “reactivate”. （ ）多选题_________ is a branch of grammar which studies the internal structure of words and the rules by which words are formed. ( )多选题“-s” in the word “books” is _______. ( )多选题Just as a phoneme is the basic unit in the study of phonology, so is a morpheme the basic unit in the study of morphology. （ ）多选题_________ are often thought to be the smallest meaningful units of language by the linguists. ( )多选题Inflectional morphemes manifest various grammatical relations or grammatical categories such as number, tense, degree, and case.多选题The word ______ is not a compound. ( )多选题Few words can be added to closed class words. （ ）多选题Words are the smallest meaningful units of language.多选题_______ are those that can be used independently and they are words by themselves. ( )