1. My sister cann`t cook
2.Can you do it alone?
2.Who can answer this question?
5.She never can come to the meeting on time.
6.Can you help me tomorrow
7.Can you drive a car?
8. Can I meet you tomorrow?
9.Why couldn`t you make this exercise?
10.He said that he couldnt come that evening.
11.Where can I buy tickets?
12.You cannot think about it all time.
13.She could swim last year.
14.Could you find him yesterday?
15.Sorry, but I couldn`t come yesterday