Of the three branches of phonetics, the longest established, and until recently the most highly developed, is（）phonetics.

In English, “pill” and “bill” are （）.

acculturation

A sentence is a （） concept, and the meaning of a sentence is often studied in isolation.

In modern linguistic studies, the written form of language is given more emphasis than the spoken form for a number of reasons.

locutionary act

A general difference between phonetics and phonology is that phonetics is focused on the production of speech sounds while phonology is more concerned with how speech sounds distinguish meaning.

The semantic components of the word “gentleman” can be expressed as（）.

As modern linguistics aims to describe and analyze the language people actually use, and not to lay down rules for "correct" linguistic behavior,it is said to be （）.

ethnic dialect