It looks like you've shared a series of sentences that may need to be completed or rephrased. Here are some suggested completions for each:

9. I haven't seen Anna for 10 days.
=> **This is the last time we met.**

10. Today is Sunday. I haven't taken a bath since Thursday.
=> **It is overdue.**

11. I haven't eaten this kind of food before.
=> **It is a new experience for me.**

12. Janet is the best tennis player in the club. (plays)
=> **She plays exceptionally well.**

13. The bus takes longer than the train.
=> **The train is faster.**

14. "I don’t think John will come," said Bill.
=> **Bill said that he doubted John's attendance.**

15. I can't cook as well as my mother does.
=> **My mother is a better cook than I am.**

16. You can't visit the United States unless you get a visa.
=> **If you want to visit, you'll need a visa.**

If you have any specific requests or need further elaboration, feel free to ask!