Zero, First and Second Conditionals

If you ___ water to 100°C, it ___ .

• heat / boils

• heats / boil

• heated / boil

• heat / boiled

If it rains tomorrow, we ___ at home.

• stayed

• stay

• will stay

• staying

If I ___ you, I ___ harder for the exam.

• am / study

• were / would study

• was / studied

• be / will study

If people don’t wear helmets, they ___ hurt.

• would get

• will get

• get

• got

If she ___ her project on time, the teacher ___ happy.

• finish / is

• finishes / will be

• finished / would be

• finishing / will

If he ___ more money, he ___ around the world.

• has / travel

• have / travels

• will have / travels

• had / would travel

If you mix red and blue, you ___ purple.

• would get

• will get

• got

• get

If they invite me to the party, I ___ .

• go

• goes

• went

• would go

If I ___ the answer, I ___ you.

• known / tell

• know / tell

• know / will tell

• knew / would tell

If you touch fire, it ___ you.