Here are the completed sentences based on the options provided:

1. **Keith and Tom never eat fruit juice.**
2. **Susanna always buys fresh food at the market.**
3. **Sarah is dancing beautifully on the stage.**
4. **Alex likes watching sport but Sarah doesn’t like it.**
5. **Sarah is reading books at the moment.**
6. **Alex plays video games well.**
7. **He writes a blog on his website and a weekly article in a teen newspaper.**
8. **He wants teenagers to cook healthy food.**
9. **A lot of teenagers read Sam’s blog and try his recipes.**
10. **In the blog, he talks about his life and recipes.**

Let me know if you need anything else!