1. There ____________ (be) difficulties in the traffic if it snows.    will be
2. You will see London Eye if you ____________ (visit) London.     visit
3. If you ____________ (go) to the disco tomorrow, you will dance a lot.       go
4. If you ____________ (not / go) out, please be sure to rent some up-dated films.      don't go
5. I won’t go to the party if it ____________ (rain).   rains
6. If you _____________ (sit) in the sun, you get burned.   sit 
7. If I _____________ (be) even 5 minutes late for work, my boss shouts at me.    am
8. If you _____________ (speak) too loud, I am able to hear you.    speak
9. If babies _____________ (not / sleep), they become too easily upset.           don't sleep
10. My friend Laura will be too disappointed if she ____________ (fail) the driving test.        fails
11. What will you do if she _____________ (refuse) to go out with you?      refuses
12. I will give you a candy if you ______________ (behave) yourself.        behave
13. I always _____________ (feel) miserable when it rains.      feel
14. You will fell healthier if you _____________ (exercise) regularly.         exercise