英语四级
单选题第（30）题选
参考答案：N进入在线模考
语法判断：空格前为and4percent，空格所在句子后半部分与前半部分应为and连接的并列分句，前一分句说5 percent said…空格所在分句说4 percent——…根据并列结构的特征，填入的应为动词且应为过去式，并能够和后面的介词to搭配。
语义判断：备选项中是动词并且是过去式的还有：acknowledged、obligated、conducted、confessed和researched，这其中acknowledged的迷惑性最强，其意似乎可行，但从语法上来讲，和后面的介词to无法搭配。而confessed既合语义，又合语法。
语义判断：备选项中是动词并且是过去式的还有：acknowledged、obligated、conducted、confessed和researched，这其中acknowledged的迷惑性最强，其意似乎可行，但从语法上来讲，和后面的介词to无法搭配。而confessed既合语义，又合语法。
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