--- ______ you give your seat to this old man? --- Of course. 

You           be hungry after the long walk．Help yourself to some cakes．

You have already tried your best, so you _____worry too much about the exams.

—Could I finish it today or tomorrow ?—Either day is OK．Take your time．You _________ do it as you like．

As I was sitting down for dinner,the telephone ________ring.