ПОМОГИТЕ ПОЖАЛУЙСТА С АНГЛИЙСКИМ!!! ПОЖАЛУЙСТА!!

1. We stayed at home yesterday because it was very hot.
2. Maya is ill so she isn't at school today.
3. Gorillas are in danger because hunters kill them.
4. I hate zoos because the animals look unhappy.
5. My phone was very old so I bought a new one.
6. She was sad because she didn't pass her exams.

1. because
2. so
3. because
4. because
5. so
6. because