Ответ:
1. Fred would not agree even if you asked him.
2. If she finds that letter, she’ll show it to you.
3. If I meet him, I will invite him.
4. Would they come if we invited them?
5. Our boss will be very disappointed if you aren’t at the meeting tomorrow.
6. The teacher said, “I’ll begin the lesson as soon as Matt stops talking.”
7. The old gentleman doesn’t go out in winter. He will go out if the weather gets warmer.
8. She’s flying to Cairo tomorrow. She’ll send her family a telegram providing
that she arrives with a delay.
9. If the plane had left on time, they would have been in Minsk now.
10. If they hadn’t walked 40 km, they wouldn't have been exhausted now.
11. He would have been scrupulous — if he had been able to!
12. What is the answer if you add 17 to 75?
13. The evening will be fine, if only we didn't have a storm.
14. You might be of interest to me, if only I had time to waste on you.
15. If you leave at two, you will be there before dark.