Put the vers between brackets into the correct tense :
1-We (get) wet if it (rain).
2-If you (boil) water at 100 degrees centigrade,it (evaporate).
3-If you (throw) water on fire, it (stop)burning.
4-I you (take) an aspirin, you (feel) better.
5-She (fall) sick if she (drink) from that polluted water.
6-If you(buy) two, you (get)one free.
7-I(help) you to do the exercises if you (want).
8-If you ( not stop) making noise , i (switch off) the TV.
9-H( understand) if you ust explain why you (come) late.
10-If you (touch) that wire , you (get) an electric shock.
11- If this jacket (be) the corect size, it (fit) me .