Answer the following question about this sentence:

The girl shared her lunch with her friend.

What is the cause?
Ans: **Her friend forgot to bring his lunch.**

Answer the following question about this sentence:

The friends' debate dragged on interminably.

What is the cause?
Ans: **The friends were splitting hairs.**

Answer the following question about this sentence:

The water in the teapot started to boil.

What is the effect?
Ans:
**The teapot whistled.**