A. the loss of morphological rules B. the addition of morphological rules C. the alteration of morphological rules D. all of the above
A. elaboration B. external borrowing C. sound assimilation D. internal borrowing
A. comparative markers B. tense markers C. gender and case markers D. none of the above
A. sound addition B. sound loss C. sound shift D. sound movement
A. the nature of language change B. the causes that lead to language change C. the relationship between languages D. all of the above
A. 对 B. 错