It’s important for us to use a word or phrase according to thein language studies.A. expre

问题补充：

It’s important for us to use a word or phrase according to thein language studies.

A. expression

B. situation

C. source

D. opinion

答案：

A. expression

(答案→)B. situation

C. source

D. opinion

解析：考查名词辨析A. expression表达 B. situation情况；局面，形势，处境；位置；（心理学）情境C. source根源，本源；源头D. opinion观点。句意：英语学习中最重要的就是能够根据语言学习的环境（语境）来运用词汇和句子.故选B