Feelings:
1) After I do my homework, I always feel tired.
2) When I break up with my friend, I usually feel sad without him.
3) When my brother takes my toys without permission, I sometimes feel angry.
Opinions:
1) In my opinion, people should be more careful to the wildlife.
2) In my opinion, computers should be cheaper.
3) In my opinion, there should be less homework, so we would have more spare-time.