1. Although he has a very important job, he isn’t particularly well-paid. =>In spite of a very important job he has , he isn't particularly well-paid .

4. We thought we’d better invite them to the party although we don’t like them very much.⇒Despite  not liking them very much , we thought we’d better invite them to the party

Although I didn’t speak the language, I managed to make myself understand.=>In spite of not speaking the language , I managed to make myself understand.

7. I didn’t recognize her although I’d met her twice before.=>In spite of having met her twice before , I didn't recognize her

8. We’re not very good friends although we’ve known each other a long time.=> Despite having known each other a  long time , We’re not very good friends

9. Although Minh was ill, he still came to the meeting.=>In spite of minh's illness , he still came to the meeting.