It is Mary's?还是It is Marys?名词性物主代词换成人名不知道怎么写了……谢谢回答

问句hi,is（ ）Mary?回答Yes,it's Mary. 什么meat is it?---------Mary's ----____meat is it?----Mary's 用英语介绍别人 比如说这是玛丽 用It's Mary 可以吗 还是一定要用This is mary 英译中：It is Mary's birthday today!Hooray for her.It is 改用 It's 会否更好?还是都一样? 连词成句 is it mary's book english not Is that Mary speaking?Yes ,it is what撇s is it 还是what is it 为什么 Whose ruler is it?It's -----a.Peter b.Peters c.Mary's d.Peters' It is Mary's?还是It is Marys?名词性物主代词换成人名不知道怎么写了……谢谢回答 what’s her name?A her is mary B It's mary C mary.为什么选c? --Whose notebook is this? --It must be______.A.Mary B.Marys C.Marys ' D.Mary's Whose is it?It is Mary?改错并解析 1.Is Mary a girl's name?Yes,she/it is 2.Is Mary a student?Yes,she/it is.说明选择原因 when is it 回答：It's on ......还是It's ......It's on + 时间 还是It's + 时间？ is it?It's spring. yes,it is.it's What is it?|It's . This coat isn't yous.Whose coat is it,It's MarThis coat isn't yous.Whose coat is it,It's Mary's.