3. His father asked him to go stay at home because he was sick. => Because of................................................................................. => Because of ........................................................................................ 4. She failed the University entrance exam because her grades were bad. => Because of................................................................... => Because of ......................................................................................... 5. Because I studied hard, I passed the exam. => Because of................................................................... 6. She can’t work hard because she is very old. . => Because of.................................................................................................... . => Because of................................................................................................... 7 . He couldn’t go to school because he was very poor. =>. Because of....................................................................................................... . => Because of...................................................................................................... 8. I can’t buy this bike because I don’t have enough money. . => Because of......................................................................................................