18. said that there will be a class meeting this afternoon, but you'd better make sure

17. said that another hospital has been built in the city　　

16. so that we can serve the people in the future

15. the difference between these two languages

14. understand the text, you may ask your teacher for help

13. People's Republic of China was founded on Oct 1st, 1949

12. worded because her mother has been ill for some time

11. has been an English teacher for more than thirty years

10. had left when we got to the railway station

9. you getting along (on) with your English study