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    At first, the speaker was referring to the problem of pollution in the country but halfway in his speech, he suddenly to another subject. A. committed B. switched C. favoured D. transmitted 【查看更多】

     

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    At first, the speaker was referring to the problem of pollution in the country, but halfway in her speech, she suddenly ____ to another subject.

    A. favoured                 B. switched                 C. agreed                    D. came

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