2. Although I had never seen her before, I recognized her from a photograph.
3. She wasn’t wearing a coat although it was quite cold.
4. We thought we’d better invite them to the party although we don’t like them very much.
5. Although I didn’t speak the language, I managed to make myself understood.
6. Although the heating was on,the room wasn’t warm.
7. I didn’t recognize her although I’d met her twice before.
8. We are not very good friend although we’ve known each other a long time.
Chúc bạn học tốt👍🏻