What are the major distinctions between langue and parole?

“John killed Bill but Bill didn’t die” is a (n) （）.

locutionary act

Duality

acculturation

What essentially distinguishes semantics and pragmatics is whether in the study of meaning （）is considered.

ethnic dialect

“It is raining hard” is a one-place predication sentence.

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

Describe the process of language perception，comprehension and production.