Help the messy roommate complete his text message with the correct excuse.

I didn't wash the dishes _____ my pet iguana was looking at me sadly.

The correct answer is because.

We use because to introduce a reason or cause for an action. In this case, the sad iguana is the (highly questionable) reason the dishes didn't get washed!

• So introduces a result.

• But introduces a contrast.

• Or introduces an alternative.