用名代:mine,yours,his,hers,its,ours,yours,theils各造句两答:his.this birthday cake is yours.is that bike his?Yes,it is.look,there are two watches.the green one is yours,and the other one is his.is this dress your mother's?Yes,it's hers.those cakes are hers.I have a dog.this ball is its.these bags are ours.your bags are ove...