单项选择题
The sentence structure is （）.
A.only linear B.only hierarchical C.complex D.both linear and hierarchical
单项选择题 A sentence is a （） concept, and the meaning of a sentence is often studied in isolation.
单项选择题 What essentially distinguishes semantics and pragmatics is whether in the study of meaning （）is considered.
单项选择题 “John killed Bill but Bill didn’t die” is a (n) （）.
