Here is the solution:
1. He listens to the radio often.
2. They read a book sometimes.
3. Pete never gets angry.
4. Tom is usually very friendly.
5. I sometimes take sugar in my coffee.
6. Ramon and Frank are often hungry.
7. My grandmother always goes for a walk in the evening.
8. Walter sometimes helps his father in the kitchen.
9. They never watch TV in the afternoon.
10. Christine never smokes.