Помогите пожалуйста срочно нужно

1. Julia will have finished all the housework by three o'clock, and we'll go for a walk. (B)
2. I promise I will get in touch with you if I need your help. (A)
3. We are going to buy a car. By the end of next month, our family will have saved money for it. (B)
4. The workers say that they will have built up a district by the beginning of 2000. (B)
5. She will probably never have been patient. (B)
6. She will have had lunch by the time we arrive. (B)
7. If you think it over, you will see that I'm right. (A)