Exercise 1. Rewrite the sentences and use the first conditional. Keep the same meaning.
Example: My car will be out of order. I won't drive you there.
If my car is out of order, I won't drive you there.
1) We'll have a nap after lunch if we are sleepy.
2) If I don't know his phone number, I won't be able to give him a ring.
3) If John is. at work, he won't go with us.
4) If he doesn't like the monitor, he can send it back to the shop.
5) We won't help you if we don't have enough time.
6) You will choose some other hotel unless you are happy about it.
7) If you take up this course, you will like it.
8) Unless you tell your parents, they will be surprised.
9) If you don't eat anything, you'll be hungry.
10) We'll set off tomorrow on condition that the weather is good.