最佳答案:a friend of my father’ssome old books of my elder sister’sa teacher of their’s不确
最佳答案:1.He is taller than she .2.I am shorter than my mother .3.Their classroom is big
最佳答案:在那边的足球是他们的.The football overthere is theirs.那个漂亮的吹风机不是我姐姐的,是他们的,我的好朋友.That nice
最佳答案:1.I have washed my shoes on the day before yesterday morning.2.Sue's sister cook