American accent and natural speed please.
1. lift off
2. I have enjoyed my stay here. I will be sorry to leave.
3. How fast must I run to get there in time?
4. Daisuke failed to solve the problem, whereas Aiko succeeded in solving it.
5. He has cold.
6. Many readers have taken a stab at making a floral arrangement while wondering if they were doing it right.
7. I'm sorry to call you so late, but I need to ask you something.