11.  What's healthy diet?

12.  It's foods which contain some fat, some fibre, a little salt and so on.

13.  The Chinese diet is considered to be the healthiest in the world.

14.  It's rich in fibre and low in sugar and fat.

15.  That's why Chinese have healthy white teeth.

16.  But I heard someon say" He is taller than me."

17.  .I don't know which one is right.

18.  Can you explain that which one is right?

19.  The other question is : what on earth is " further " and " farther " words' different ?

20.  Their means, useful ways are same, they had diffrerent too, why ?