Effect: the books fall, what is the cause?
the books are too heavy.
Effect: the car gets towed away. What is the cause?
The car breaks down.
Effect: I missed the bus. What's the cause?
I woke up late.
Effect: I ate a food, (a hamburger). What is the cause?
I was hungry.
Effect: I got 100 on my spelling test. What is the cause?
I did my homework and studied my words.
