( )21.I ________ play table tennis this Sunday.
A. am going B. am going to C. going to
( )22. I want to be a doctor when I ________.
A. grow up B. get up C. grew up
( )23. Sam spends 2 hours ________ his homework every day.
A. do B. to do C. doing
( )24. ---Would you mind cleaning the blackboard? ---_________.
A. Of course not B. OK. C. It’s a pity.
( )25. I felt very________, because the news is so _________.
A. excited, exciting B. exciting, excited C. excited, excited
