Does Mary have a computer?does 和 do各表示什么

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Does Mary have a computer?does 和 do各表示什么
Does Mary have a computer?does 和 do各表示什么

Does Mary have a computer?does 和 do各表示什么
Does是Do的单数第三人称,因为Mary对于交流的双方而言是第“三”方,所以用Does,如果问的是对发“你”或者自己“我”则用Do.

1）构成一般疑问句，例如：
Do you want to pass the CET? 你想通过大学英语测试吗？
Did you study German? 你们学过德语吗？

do是2人称
does是3人称
Did过去式

我不知道该怎么解释, 就是, does 是给第三人称的, 比如 Does she like me? Do 是第一人称, 地二人称和地三人称的复数的, 比如说, Do they like me? Do I really want to do this? Do you understand?

do 用于第一人称和第二人称或者复数名字的的一般疑问句中。
另一个用法是作为强调语气的用法
比如：I do have a bike.我的确有辆自行车。
does 用于第三人称单数的一般疑问句中。

does Mary have a soccer ball?作肯定回答. Does Mary have a computer?does 和 do各表示什么 what does mary have for dreakfast? What does mary have for breakfest? what does Mary have forbreakfast 的意思两个人名做主语是单数还是复数eg._____Ann and Mary have a pen?(do/does)Ann and mary _____ a pen(have/has) has用在第三人称单数,那为什么Does Mary have a ball?这里还用have,Mary也是第三人称单数呀? what does Mary have in her box?还是What does Mary has in her box? Who has a tennis ball and a basketball --Mary and Gina ( ).A.have B.does C.do D.has how many children does Mr Green have?3.Mary,Joan and Jack.Mary is____sister.A Joan and Jack's B Joan's and Jack's MARY DOES NOT HAVE ANY BOOKS (变肯定句） Mary does not have any books怎样改为肯定句? 帮我翻译一下What question does Mary have mary always does her homework ofter school 用have改写按要求完成句子 1.I want to buy a big green bag.2.Mary does not have any books. Mary has visited the Great Wall.So _____ l.A.am B.have C.does B.do快呀急 My sister Mary( )a ping pong ball,but I( ) A.have;donot B.have;doesn t C.doesn thave;doDonothave;does 选择填空 I like eating beijing roast duck A So does Mary B so Mary doesC Mary does so D Mary so does