题目

________，people are beginning to realize how serious the situation is. A．Fortunate                                           B．Fortunately C．Being fortunate                                   D．Being fortunately 答案：　副词Fortunately作状语，修饰整个句子，相当于It is fortunate that...。句意为：幸运的是，人们开始意识到形势的严峻性。 答案：　B

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