Task 2. Complete the sentences below with 'because' or 'so' (remember to use a comma before 'so').
1. My cat was hungry ___ it ate a fish
2. I'm tired ___ I didn't sleep well last night.
3. Stewart bought lunch ___ he was hungry
4. Mary was sick last week ___ she saw a doctor.
5. I was late for work ___ this morning I overslept
6. Sweden is a cold country ___ people wear warm clothes in winter
7. He didn't study ___ he failed the history exam.
8. They weren't busy ___ they helped me
9. I wasn't careful ___ I fell off my bicycle
10. Catherine didn't spend much money ___ everything was on sale