Помогите пожалуйста 4 номер срочно!!!!

1. Jack and I may go sightseeing this afternoon. 2. I might visit Mexico next summer.  3. It probably will be sunny this weekend. 4. Kevin could save up enough money to go on the adventure tour next year. 5. They might not go on holiday this year. 6. We'll definitely go to Mauritius next month.