Question

【题目】Many people agree that ______ knowledge of English is a must in _______ international trade today.

A．the, an B．a, 不填

C．the, the D．不填, the

Answer 1

【答案】B

【解析】

试题分析：

a knowledge of: 某一方面的知识；trade 为不可数名词，表示泛指时不用冠词。