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单选题
4.Mary＇s friends don＇t believe what she says about the thing, ?
A
A.did they
B
B. do they
C
C. didn＇tthey
D
D. don＇tthey
答案解析
正确答案：B
解析：
4.【翻译】玛丽的朋友们不相信她所说的关于那件事的话，是吗？【精析】B分析句子结构可知，陈述句部分为主从复合句.believe之后为what引导的宾语从句，主句的主语为 Mary＇s friends,所以反意疑问句部分应和主句保持一致。根据句中的don＇t可知，陈述句部分为否定句，根据“前否定 后肯定”的原则可知，反意疑问句部分应用肯定形式,可排除C、D两项。另外，主句为一般现在时，所以反意疑问句部 分也应用一般现在时。故选Bo
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