Here are the simple sentences from the list:

1. **Tom has a sore throat.** (✓)
2. Mary and Susan are watching TV.
3. My job is very interesting, but it doesn’t pay very well.
4. **We stayed at home and watched a film.** (✓)
5. **My son loves summer.** (✓)
6. Bob eats a lot of fast food and he puts on a lot of weight.
7. **I like chicken best.** (✓)
8. She forgot to wear a sun hat today and she got a headache.
9. **Scott plays tennis in the morning.** (✓)
10. **The girl dances on the floor.** (✓)

The sentences that can be ticked as simple sentences are 1, 4, 5, 7, 9, and 10.