1. After saving their money for ten years, they were able to buy a house.
2. Sam and Beth can speak Italian fluently, can't they?
3. Could you tie your shoelaces when you were four years old?
4. It was a very tricky question, but Paul was able to answer it.
5. I couldn't hear what they were saying because the music was too loud.
6. Although it was difficult, the children were able to build a tree house.
7. Susan can't come to the phone. She is busy.