1) I think my parents will be at home this evening 
2) They won't write to you again, and I won't either 
3) I'm sure John will be in his office in the afternoon 
4) We shan't go North America, we shall go to South America in June 
5) I shall buy some bread and milk on my way home 
6) You will read a fairy tale to me, won't you 
7) We shall go to New York by car. 
8) Are you sure it will rain? 
9) They won't finish this work soon.
просто заменяешь 
где отрицание пишешь shan't