Exercise 1. ‘0’ conditional sentences.
1. My bike (go) faster if I (not put) a bag on the back
2.If milk (smell) bad, it (be) not drinkable
3.My mum (shout) at me if I (come) home late
4. If you (follow) recipes, you easily (learn) to cook.

Exercise 2 ‘1’ conditional sentences
1. If I (buy) him a recipe book, he (make) me dinner
2. If you (wake) my dog up, it (shout) at you
3. If you (study) maths at university, you (know) how to solve it
4. Of you (walk) on the grass, the guard (become) angry