【題目】Many people agree that _________ knowledge of English is ________ must in international trade today.

A. a; the B. 不填；不填

C. a; 不填 D. a; a

【答案】D

【解析】

試題分析：句意: 許多人同意具備英語方面的知識(shí)在今天的國際貿(mào)易中是必須的。當(dāng)抽象名詞knowledge有定語修飾時(shí)，意為某一方面的知識(shí)；a must意為:一件必不可少的東西。故選D。

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