Problem: How does the sentence end?

If you want some orange juice it makes sense to ask Tanya instead of Emily, 
Answer: Emily has a lemon tree.

Problem: How does the sentence end?

Elena had a better grade in music class than Victoria because 
Answer: Elena performed better on the piano.

Problem: How does the sentence end?

Justin discovered that Benjamin drank the last of the milk. 
Answer: Benjamin did not realize he was going to eat cereal.

Problem: How does the sentence end?

Tanya was sick with cancer but Emily was not. 
Answer:
Tanya lived a short unhealthy life.