21. ---Don't worry, Mum. The doctor said it was only the flu.
---_____! I'll tell Dad there's nothing serious.
A. What a relief                   B. Congratulations   
C. Cheer up                       D. I'm so sorry
22. Mrs.Lee has ____ 8-year-old son who has ____ gift for painting.---He has won two national prizes.
A. a; a             B. an; the         C. a; the          D. an; a