—__ your sister know Tom? —No, she _...

—____ your sister know Tom? —No, she ____.

A. Do; don’t B. Does; doesn’t

C. Do; do D. Does; does

B 【解析】试题分析：句意：——你的姐姐认识汤姆吗？——不，她不认识。主语your sister是第三人称单数，故此处用助动词does。根据No可知此处用否定形式，主语she是第三人称单数，故用助动词doesn’t。故选B。考点：考查主谓一致的用法。

考点分析：

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—____ your sister know Tom? —No, she ___...