part that vocabulary plays in learning foreign language should never be ignored.A. The;

part that vocabulary plays in learning foreign language should never be ignored.
A. The; /
B. A; /
C. The; a
D. A; the

A. The; /B. A; /(答案→)C. The; aD. A; the解析：句意：词汇在学习一门外语中起的作用永远不应该被忽视。第一空填the，特指“词汇在学习一门外语中起的作用”，第二空填a，泛指“一门外语”，所以选C。

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