Mr Li ________ .
---Be polite . You _____ talk to the old like that ! ---Sorry , I won’t .
----______ do you visit you grandparents ? ----Once a week .
---What do you think of the book , Betty ? ---It’s a good one . Each time you read it , you will find _______.
---You are late . What’s the matter ? ---I helped an old man _______ lost his way home .
Have you got a dictionary ? I want to____ the correct spelling of the word.