A c（） sentence contains two or more clauses， one of which is incorporated in the other.

A r（） is often seen as part of a word， but it can never...

填空题A r（） is often seen as part of a word， but it can never stand by itself although it bears clear， definite meaning.

Clear [1] and dark[]are allophones of the same one phon...

填空题Clear [1] and dark[ƚ]are allophones of the same one phoneme /1/.They never take the same position in sound combinations， thus they are said to be in c（） distribution.

In the course of time， the study of language has come t...

填空题In the course of time， the study of language has come to establish close links with other branches of s（） studies， such as sociology and psychology.