6 As it was raining heavily, we decided to stay home and watch TV
7 Because he wants to get fit, he is training hard
8 Since Sally was ill, she didn't go to school yesterday
9 Jane stayed behind after the class because she wanted to talk to the teacher
10 He was sick so he stayed at home
6. We decided to stay at home and watch TV as it was raining heavily.
7. He's training hard because he wants to get fit.
8. Sally didin't go to school yesterday since she was ill.
9. Jane stayed behind after the class because she talked to the teacher.
10. He stayed at home because/as/since he was sick.
Join each pair of sentences using because, as or since. 
