Everybody knows vegetables and fruit are g       for people．Many people eat some fruit each day．Mr and Mrs Smith like e        fruit very much and every day Mrs Smith goes to buy some fruit in the shop near her home. She can buy all k         of fruits there，such as apples，pears, oranges and bananas．In different time of the year the p        of each kind of fruit is not the same，s        high，sometimes low. Mrs Smith usually t      to buy cheap fruit．And b        are Mr Smith’s favourite fruit．Mrs Smith buys bananas for him every week．But she always chooses the cheap ones.“Eating fruit can help to keep f     ，" said Mr Smith．“It’s quite d          from snacks．Both of them can give us energy．But snacks l        cakes, chocolates and sweets are not good for our health at all," 

Mary did not understand such sentences as “She is in blue today.” “You are yellow.” “ He has a green thumb.（大拇指）” “He has told a white lie.” and so on. . And she went to her teacher for help.
Mary: Mrs Smith, there is a color in each of these sentences. What do they mean?
Mrs Smith: In everyday English, Mary , blue sometimes means sad. Yellow means afraid. A person with a green thumb grows plants well. And a white lie is not a bad one.
Mary: Would you give me an example for a white lie?
Mrs Smith: Certainly. Now I give you some cake. In fact you don’t like it, but you won’t say it. Instead, you say, “No, thanks, I’m hungry.” That’s a white lie.
Mary: Oh, I see. Thank you very much..
【小题1】Blue sometimes means sad and is ________ English.”

--I don’t know _____she is.

     --Mrs Smith says she is a shop assistant.

      A. where       B. who         C. what            D. how