1.

Although they had only known each other for two weeks, they decided to get married. (HOWEVER)

They had only known each other for two weeks. HOWEVER, they decided to get married.

2.

Although he behaved badly, she praised him. (IN SPITE OF)

IN SPITE OF his bad behaviour she praised him.

3.

Although he promised it would never happen again, she insisted on a divorce. (NEVERTHELESS)

He promised it would never happen again. NEVERTHELESS, she insisted on a divorce.

4.

Despite his charm and good looks she did not like him. (ALTHOUGH)

ALTHOUGH he had charm and good looks, she did not like him. ALTHOUGH he was charming and good-looking, she did not like him.

5.

She is well-qualified, but I don't want to work with her. (IN SPITE OF)

IN SPITE OF her good qualifications I don't want to work with her.

6.

Although they always seem kind and straightforward, I don't trust them. (YET)

They always seem kind and straightforward. YET I don't trust them.

7.

He didn't know his neighbours very well, but he invited them to his party. (ALTHOUGH)