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3.______Bill ______two pingpong balls?(  )
A.Do;haveB.Does;haveC.Does;has

分析 Bill有两个乒乓球吗?

解答 答案:B
结合句意"Bill有两个乒乓球吗?"可知该句是一般疑问句,结合语境可知询问的是客观事实故确定为一般现在时态,又知谓语动词have是实义动词,主语Bill是第三人称单数,变一般疑问句助动词用does,句型结构为Does+主语(三单)+谓语(动词原形)+其他,套用结构,故填Does;have故选B

点评 助动词,帮助实义动词构成否定句和一般疑问句的,要根据时态,人称等选择正确用法完成试题.

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