Last night I wanted to sleep late at night because it was homework. Cause I'm not a biology, I woke up and went to school late because of insufficient sleep.
Last night I had to sleep there because the house. I did not sleep A Biology Therefore, I woke up late and go to school late. Because of insufficient sleep
Last night I sleep late because of too much homework. I couldn't sleep a biology class, so I got up late and go to school late. Because sleep is not enough.