Zero, first and second conditionals exercises:
I In each sentence, put the verb in brackets into the correct tense:
1. I ............................. (enjoy) shopping if I could buy anything I wanted.
2. You wouldn't catch cold all the time if you ........................... (wear) warmer clothes.
3. We'll never finish getting the room ready unless everyone .................................... (help).
4. You will lose your friends if you ........................................ (not make) more effort to see them.
5. If we ............................ (want) to improve our quality of life, we will have to use our cars less.
6. Don't miss any lessons unless you ....................... (be) ill.
7. If I .............................. (have) more spare time, I would spend it at the cinema.
8. Please contact me if you ........................ (need) to ask any questions.
9. If I were free, I ............................... (come) to the concert with you.
10. If you follow the river, you ........................... (see) the college on the right.
11. If I were younger, ................................. (you marry) me?
12. If she ............................... (change) her hairstyle, she would be pretty.
13. Unless she ............................(put on) a coat she'll catch a cold.
14. Even if I sleep well I always .......................... (have) a headache.
15. What ............................. (you do) in case Bob refuses?
16. ............................................. (we have) enough time if we wanted to see a castle?
17. In case you ...................... (buy) a car, will you teach me to drive?
18. She won't finish it on time if she ........................... (not start) right now.
19. If they ............................... (support) our product, they would get a discount.
20. Even if she ........................ (ask) him, he won't come