1. If it **is** nice, I'll go camping, but if it **isn't** nice, I'll stay at home.
2. If it's too expensive, I **will have** to borrow some more money.
3. I **would send** you cable if there **were** a post office there.
4. If he **goes** by plane, it'll take him two hours.
5. If I see her, I **will give** her a gift.
6. She may be late if she **doesn't hurry**.
7. Mary **will not visit** you if she has a test next week.
8. If he **studies** hard, he can pass the exam.
9. Tell him to ring me if you **see** him.
10. If you **don't like** this one, I'll bring you another.
11. I'd tell you who he is if I **knew**. He's a stranger.
12. If I had a watch, I **would tell** you what time it is.
13. If I **didn't have** the test, I'd go with you.
14. Water **would not run** downhill if there were not gravity.
15. What **would** you **do** if you found a burglar in your house?
16. If I **were** you, I **would accept** the job.
17. He couldn't get fat if he **didn't stop** smoking.
18. If I won a big prize in a lottery, I **would give** up my job.
19. If she **did** her hair differently, she would look quite nice.
20. If I **got** one more mark, I'd pass with honors.
21. I didn't know you were in hospital. If I **had known**, I **would have gone** to visit you.
22. Ken got to the station in time to catch his train. If he **had missed** it, he **would have been** late for his interview.
23. It's good that you reminded me about Ann's birthday. I **would have forgotten** if you **hadn't reminded** me.
24. Unfortunately, I didn't have my address book with me when I was in New York. If I **had had** your address, I **would have sent** you a postcard.
25. A: How was your holiday? Did you have a nice time?
B: It was OK, but we **would have enjoyed** it more if the weather **had been** better.