二、单选（共15分）
（ ）1. sleep too late. It’s bad for your healthy.
A. Do B. Not C. Don’t D. Please not
（ ）2. If you arrive late school, you must say to your teacher.
A. for; thanks B. for; sorry C. to; sorry D. in; thanks
（ ）3. On Sunday I have to go to the farm my parents.
A. to help B. help C. helping D. helped
（ ）4. We wear our school uniforms.
A. aren’t have to B. don’t have C. don’t have to D. aren’t have
