结合短文，用所给单词的适当形式填空。

      I have got three good friends. Mike is 1._____ (tall) than Tom. Mary is 2._____ (short) than Tom.

Tom is 3._____ (strong) than Mary. Mary is 4._____ (young) than Mike. They can play football. Mary

is 5._____ (bad) than Mike. Tom  is 6._____ (good) than Mike. I like them very much.