I forgot my English book because I did not put it in my backpack last night.
Cause: I did not put it in my backpack last night
Effect: I forgot my English book
The dog was hungry, so I fed him two bowls of dog food.
Cause: The dog was hungry
Effect: I fed him two bowls of dog food
I wanted to be the best dressed in the party so I bought some new clothes.
Cause: I wanted to be the best dressed in the party
Effect: I bought some new clothes
Because I studied last night, I know I will get a good grade.
Cause: I studied last night
Effect: I know I will get a good grade
I turned the volume up on the TV since I could not hear the program.
Cause: I could not hear the program
Effect: I turned the volume up on the TV
We had to go inside at lunchtime due to the thunderstorm.
Cause: Thunderstorm
Effect: We had to go inside at lunchtime