Ответ:

1. I'll be happy if I go to the concert of my favourite band.

2. If it rains all weekend, I'll stay at home.

3. If I forget my best friend's birthday, he will be upset.

4. I'll pass all my exams if I study hard every day.

5. If I don't feel well tomorrow morning, I will go to the doctor.

6. I'll go to the bed early if I feel very tired.

7. I'll be disappointed If I don't get a good mark for my essay.

Объяснение: