Unit 1 单元测试题Written test part. 单项选择(每小题1分, 共10分)从A、B、C、D四个选项中选择可以填入空白处的最佳答案。( )16. Can Tim play _ chess?Yes. And he can play _ drums, too.A. the; the B. the; 不填 C. 不填; the D. 不填;不填( )17. I always help my sister _ her history.A. with B. of C. for D. in( )18. Can you sing _ dance, Gina? I can sing, Miss Xu. A. or