$\text{Answers:}$
$\text{1. In spite of being a poor student, Tom studied very well.}$
$\text{2. Because of Mary's sickness, she could not go to school.}$
$\text{3. Despite the bad weather, she went to school on time}$
$\text{4. Because of a big storm, I stayed at home.}$
$\text{5. Although Tom had a good salary, he gave up his job}$
$\text{6. Although he is so young, his acting is excellent.}$
$\text{7. In spite of the fascinating film poster, I don't want to see this film}$
$\text{8. Despite our careful plan, we made some mistakes.}$
$\text{Chúc bn học tốt!!11!!1 ٩(^ᴗ^)۶}$