My friend heavier than Mary.哪里错了

My friend heavier than Mary.哪里错了 MY friend younger than Mary哪里错了 My friend heavier than mine.中哪错了? my box is bigger and heavier than your哪里错了 Mum,these are my friend,Jim and Mary哪里错了 I'm (heavier) (than) Mary,and my eyes are (bigger) than (her my friend Mary Tom,()my friend,mary. these are my friend's CD's 哪里错了 She is very younger than Mary这句话哪里错了 My feet is bigger than yours(哪里错了) Mary is my friend.对Mary提问