When you _____________(heat) water to 100 degrees, it _________( boil).
When you heat water to 100 degrees, it boils.
If you______ (come) home late, I ______(be) angry.
If you come home late, I will be angry.
They _________(have) more money if they _____(not/buy) so many clothes.
They would have more money if they didn't buy so many clothes.
If we ______ (be) invited, we _____ (come).
If we had been invited, we would have come.
If you _______ (mix) water and electricity, you _______(get) a shock.
If you mix water and electricity, you get a shock.
If you __________ (heat) ice, it ___________(melt).
If you heat ice, it melts.
If you_______(not/want) to go out, I _________(cook) dinner at home.
If you don't want to go out, I will cook dinner at home.
If I ______ (have) a sister, I _______ (go) to the concerts with her.
If I had a sister, I would go to the concerts with her.
If she _______(not/come) to London, she _______ (not/meet) him.
If she hadn't come to London, she wouldn't have met him.
If it _______ (not rain), we _______ (go) for a walk.
If it doesn't rain, we will go for a walk.
The river ________(freeze) if it _________(be) very cold.
The river freezes if it is very cold.
Unless you ________(help) me, I _______(not pass) the test.
Unless you help me, I will not pass the test.
If I ________ (win) the lottery, I __________ (buy) a mansion.
If I won the lottery, I would buy a mansion.
If she ________ (go) to university, she ________ (study) French.
If she had gone to university, she would have studied French.
If I _________(have) enough money, I________(buy) a big house.
If I had enough money, I would buy a big house.
If students _________ (miss) an exam, the teacher ________ (fail) them.
If students miss an exam, the teacher fails them.
If he _________(not/go) to bed early, he _________(be) tired tomorrow.
If he _________(not/go) to bed early, he _________(be) tired tomorrow.
If I________(be) you, I __________(get) a new job.
If I were you, I would get a new job.
If he ________(not/take) the job, he ________ (go) travelling.
If he hadn't taken the job, he would have gone travelling.
If I _______(be) a movie star, I __________(marry) someone famous.
If I were a movie star, I would marry someone famous.
What _______ (happen) when I _______ (push) this button?
What happens when I push this button?
_______ (you/help) me if I _______ (ask) you?
Will you help me if I ask you?
What ______ (you/do) if you ______ (meet) a famous person?
What would you do if you met a famous person?
If you ________ (not/be) late, we _________(not/miss) the bus.
If you hadn't been late, we wouldn't have missed the bus.
If she _______ (study), she _________ (pass) the exam.
If she had studied, she would have passed the exam.