一、单项选择（共10小题；共10分）
1. --- Cindy, is it OK to leave you at home by ?
--- Of course, mum.
A. myself B. herself C. yourself D. yourselves
2. --- I'm really tired. I have to stop running.
--- , Jim. You can make it.
A. Come on B. Take care C. Have fun D. Good luck
