Complete the sentences.Use the correct from of the verbs in brackets. 1.If you______two books,you______one free.(Buy,get)

1.If you buy two books, you will get one free.(Buy, get) 2. The menu will appear on the screen if you press this button twice.(Appear, press)3.If dogs eat chocolate, it will make them ill.(Eat, make)4.If water freezes, it will expand. (Freeze, expand)5.If you heat water to 100°C,it will boil.(Heat, boil)