【題目】It is _____ must to have a good ______ of a foreign language and a specific skill in such a competitive society.

A. /; view B. a; command C. a; order D. /; permit

【答案】B

【解析】

考查固定句型。句意:在這樣一個競爭激烈的社會里,掌握一門外語和一門專門技能是必須的。It is a must to do sth.為固定句型,所以句中要用不定冠詞。have a good command of…,為固定搭配,意為“精通……,……掌握的好”,故選B項。

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