Government reports, examination compositions, legal documents and most business letters are the main situations______ formal lan

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问题 Government reports, examination compositions, legal documents and most business letters are the main situations______ formal language is used.

选项 A、in which
B、on which
C、at what
D、in that

答案A

解析
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本试题收录于: 英语题库普高专升本分类
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