Unit 6 Im going to study computer science.单元练习 一、单项选择(共15小题;共15分) 1.Do you want to a doctor when youre older?A. isB. areC. beD. am 2.Paul wants an actor because he likes acting.A. to beB. beC. becomeD. becoming 3.My sister art when she grows up because she wants to be an artist.A. studiesB. is going to studyC.