5) Complete the sentences with /so/ or /because/. In some sentences, you need to add commas.
0. I am happy because today is my birthday.
1. The room is clean ✰✰✰I cleaned it yesterday.
2. The weather was nice we went to the park.
3.I am not late ✰✰✰ I left home early.
4. They were hungry ✰✰✰ they went to a cafe.
5.I am sad ★★★ I miss my friends. 6. My friends went abroad ✰✰✰ we don't meet now.​