He crashed his car although he drove carefully.

• Despite driving carefully, he crashed his car.

"Why don't you write to Mel, John?" said Peter.

• Peter suggested that John write to Mel.

I'm fond of Johnny although he behaves terribly.

• In spite of his terrible behavior, I'm fond of Johnny.

Despite knowing the area well, I got lost.

• Even though I knew the area well, I got lost.

It was a cold night. We stayed indoors.

• It was a cold night, so we stayed indoors.

The owners of the restaurants are usually very rich.

• The people who own the restaurants are usually very rich.

It was after midnight, but we did not feel tired.

• Although it was after midnight, we did not feel tired.

I am not English, which is why I have to take this exam.

• If I were English, I wouldn't have to take this exam.

You have to hurry or you'll be late for school.

• If you don't hurry, you'll be late for school.

Chi didn't drink anything. She was very thirsty.

• Although Chi was very thirsty, she didn't drink anything.

You didn't phone me about it. I'm disappointed with that.

• I'm disappointed that you didn't phone me about it.

You should apologize for the misunderstanding to her.

• If I were you, I would apologize to her for the misunderstanding.

I usually give flowers to that girl.

• That is the girl to whom I usually give flowers.

In spite of the bad weather, they had a picnic.

• Although the weather was bad, they had a picnic.

I bought myself some good new clothes. I need them for my new job.

• I bought myself some good new clothes because I need them for my new job.

I can't understand him because he speaks so quickly.

• If he didn't speak so quickly, I could understand him.

"Why don't you meet me to discuss the order?"

• I suggest that you meet me to discuss the order.