1. Could you help me lift this box? Of course, I can.
2. I was alowed to go to Emma's party last Saturday.
3. Need I book a table an advance?
4. Could these flowers be from your fiance?
5. Although she was exhausted, she was able to finish the race.
6. You should brush your teeth twice a day.
7. I had my car repaired last month.
8. The bus may be late today because there is a lot of traffic.
9. Could this letter be from my friend?
10. I had to study very hard last week.