2. Mary could not go to school because she was sick.
- Because of  being sick , Mary could not go to school
3. Although the weather was bad, she went to school on time.
- Despite the bad weather , she went to school on time.
4. My mother told me to go to school although I was sick.
- In spite of being sick , I was told to go to school by my mother
5. Because there was a big storm, I stayed at home.
- Because of a big storm, I stayed at home.
6. Tom was admitted to the university although his grades were bad.
- Despite his bad grades , Tom was admitted to the university
7. Although she has a physical handicap, she has become a successful woman.
- Despite  having a physical handicap, she has become a successful woman.
8. In spite of his good salary, Tom gave up his job.
- Although he had good salary, Tom gave up his job.
9. Though he had not finished the paper, he went to sleep.
=> In spite of having not finished the paper, he went to sleep.