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

分析 Bill有兩個乒乓球嗎？

解答 答案：B
結(jié)合句意"Bill有兩個乒乓球嗎？"可知該句是一般疑問句，結(jié)合語境可知詢問的是客觀事實(shí)故確定為一般現(xiàn)在時態(tài)，又知謂語動詞have是實(shí)義動詞，主語Bill是第三人稱單數(shù)，變一般疑問句助動詞用does，句型結(jié)構(gòu)為Does+主語（三單）+謂語（動詞原形）+其他，套用結(jié)構(gòu)，故填Does；have故選B

點(diǎn)評 助動詞，幫助實(shí)義動詞構(gòu)成否定句和一般疑問句的，要根據(jù)時態(tài)，人稱等選擇正確用法完成試題．

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