Исправьте оплошности в предложениях.Пример:I could watch the late film on TV

Исправьте ошибки в предложениях.Пример:I could watch the late film on TV last night.- I was allowed to watch the late film on TV last night.
1.could you help ma lift this box?Of course I could
2.I could go to emma's party last saturday.
3.Need i to book a table an advance?
4.May these flowers be from your fiance?
5.Although she was exhausted ,she could finixh the race
6.You should to brush your teeth twice a day
7.I must have my car repaired last month
8.The bus can be late today because there is a lot of traffic
9.May this letter be from my friend?
10.I must stude very hard last week.