1. He is rich but He isn't happy (Although)
=>Although he is rich, he isn't happy
2. Cars cause pollution but people still want them (although)
=>Although cars cause pollution, people still want them
3. Mr.Nam was successful in his life although he came from a poor family (despite)
=>Despite coming from a poor family, Mr.Nam was successful in his life
4. Though he is intelligent, he can't do all these tests well (in spite of)
=>In spite of being intelligent, he can't do all these tests well
5. In spite of his much experience in machinery, he didn't succeed in repairing this machine (Although)
=>Although he had much experience in machinery, he didn't succeed in repairing this machine
6. Don't shout at her in spite of her laziness (Though)
=>Don't shout at her though she was lazy
7. It was raining heavily but I went swimming (in spite of)
=>In spite of the heavy rain, I went swimming
8. Though Lan is beautiful and intelligent, she is never proud of herself (As)
=>Beautiful and intelligent as Lan is, she is never proud of herself
9. Lan is always admired by her friends because she is intelligent (Because of)
=>Lan is always admired by her friends because of her intelligence
10. We don't spend much time in our homework because a lot of devices for the home were invented (Because of)
=>We don't spend much time on our homework because of the inventions of many devices for the home
11. We always trust Nam because he is wise and honest (Because of)
=>We always trust Nam because of his wisdom and honesty
12. Because of Lan's poverty, she can't continue her study at the university (Because)
=>Lan can't continue her study at the university because she is poor
công thức although: Although + S + V
because of: Because of + pro (noun)/ noun phrase
because : Because + S + V + (O).
in spite of ( despite) : "In spite of (despite) + N"
xin hay nhất ạ ^ ^