I think it is, "Like the stars. daffodils keep on shining. " because that is the only one (besides the example one in the beginning) that talks about something continuously doing something no matter what. But that's just a thought.
Foo its Pity not Anger or whatever the other kid said
you're welcome
Answer:
1. Because my coffee was too cold, I heated it in the microwave.
2. Although he was wealthy, he was still unhappy.
3. Whenever prices go up, customers buy less products.