Write two sentences to link the events one with so and one with because

1. We're finishing the tennis match because one of the players is injured.

One of the players is injured, so we're finishing the tennis.

2. I fell when I was skiing because I was too tired.

I was too tired so I fell when I was skiing.

3. I've written a letter of complaint because I thought the food was terrible.

I thought the food was terrible so I've written a letter of complaint.