If you ... (heat) snow, it ... (melt).

When Tom ... (be) sad, he always ... (listen) to music.

If you ... (leave), please ... (shut) the windows!

I ... (help) you, if you ... (ask) me.

If I ... (find) my glasses, I ... (können / read) the newspaper.

If Roger went away, she ... (cry).

I ... (stop) smoking if I ... (be) you.

If I ... (see) her yesterday, I ... (ask) her out for dinner.

We could have bought it if we ... (save).

If I ... (win) in yesterday's quiz, I ... (be) rich now.

It ... (nicht können / use) by the inventor if it had not been invented in 1920.

If you ... (press) the button, the computer starts.

When you ... (pour) oil on water, it ... (float).

Tom always ... (go) into his room if he ... (have) problems.

If you ... (leave) the room, please ... (shut) the door!

If I ... (have) a problem, I can always talk to my parents.

If it ... (rain), we ... (have) the party inside.

I ... (be) happy if I ... (pass) my exam.

If you ... (leave) now, you ... (catch) the train. It is still possible.

Mother always ... (get) angry if you ... (not / wash up) the dishes.

If the boys ... (come) to supper I will cook them chicken breasts.

If you look into the top drawer, you ... (find) your passport.

Unless I ... (wear) a jacket when it rains, mum always ... (get) really mad.

We ... (stay) at home if it ... (rain) like this tomorrow.

If he ... (quarrel) with his sister, she ... (not / speak) with him. This is sure.

If you ... (eat) too many sweets, it ... (be) bad for your teeth.

If people ... (have) four arms, life ... (be) easier.

If my cat ... (can / open) the fridge, it ... (eat) all my food. Fortunately, the cat can't.

I ... (travel) round the world if I ... (have) a lot of money.

Ann and Bill ... (know) what to do if they ... (be) here.

If I knew the answer, I ... (tell) you.

If I were you, I ... (see) a doctor.

If I ... (be) you, I ... (take) a holiday.

If I ... (be) you, I ... (join) a club.

I ... (fly) far away if I ... (be) you.

If I ... (be) you, I ... (call) the police.

I ... (not / sell) drugs if I were you.

If I opened the window, it ... (be) too noisy.

If I had enough time I ... (walk) to work.

We ... (win) yesterday's tennis match if we ... (not / play) so badly.

If he ... (work) harder all his life, he ... (be) rich now and live in a villa.

You ... (not / lose) your way if you had taken a map with you.

If I ... (be) here yesterday, I ... (come) to see you.

We ... (be) best friends now if you ... (not / hit) me last Saturday.

If I had gone to university, I ... (study) medicine.

I ... (be) a doctor now if I ... (be) to university when I was young.

If Amerigo Vespucci ... (not / be) to America, it ... (not / call) America today.

If Ben Johnson ... (not / take) drugs at the 1988 Olympic Games, he would have been able to keep his gold medal.

Except if Graham Bell had invented the telephone, we ... (not / can / speak) to people all over the world.

If Kurt Cobain had not committed suicide, he ... (write) a lot of songs.

Unless Eve had been given an apple by the snake, she and Adam ... (nicht müssen / leave) Paradise.

If France ... (not / give) America the Statue of Liberty in 1886, it ... (not / stand) in New York's harbour today.

If Alcatraz ... (not / close) by the government, it ... (be) the most secure prison in the world today.

If the mobile ... (not / invent), we ... (nicht können / communicate) that easily.

I think John ... (help) you if you ask him.

If you ... (clean) your glasses, you would see much better.

I ... (call) you tomorrow if I have time.

If Sue calls Tom a pest (unausstehlich sein), he always ... (get) angry.

If they arrive late, you ... (müssen / inform) me.

If she had spoken more slowly, I ... (understand) her.

If you ... (leave) at 12.00, you will arrive at 3.20.

I would have caught the 8.15 train if I ... (get up) early.

The thief would have taken her money unless she ... (have) a spray.

If you leave milk in the sun, it ... (turn) sour.

You ... (nicht können / go) to Nicaragua if you ... (not / have) a visa.

Christopher Columbus ... (not / arrive) in America except if he ... (realise) that the world was round.

If you ... (not / go) now, I ... (call) the police.

I ... (not / drive) fast unless I ... (be) really late. It is a fact for me.

Except if Peter ... (win) in yesterday's lottery, he ... (not / be) rich now.

Except if I ... (go) fishing, I ... (get up) late on Sundays.

If the wine grower ... (come), ... (tell) him to leave twenty bottles, please.

If my father ... (be) the president of the USA, he ... (stop) the conflict in the Middle East.

Unless I ... (drink) coffee last night, I ... (can / sleep) better.

If I ... (find) your key, I ... (phone) you at once.

If my parents ... (have) more money, I ... (go) to university after I had left school.

Unless I ... (give) a very bad mark by my maths teacher last year, I ... (be) in the second form now.

If the programmes were better, I ... (watch) more TV.

If you ... (drink) four pints of beer, you ... (have) too much alcohol in your blood to be allowed to drive.

If Will Smith hadn't played in the wonderful blockbuster "Independence Day", he ... (probably / not / be) famous.

I ... (buy) a luxurious flat if I ... (win) a million of dollars.

Annie ... (go) to Brazil last year except if she ... (meet) Pete.

If he ... (wear) his new leather boots, he always ... (feel) very cool.

If he had not spent all his money, he ... (can / buy) a new motorbike now.

Unless Richard Nixon ... (involve) in the Watergate Scandal in 1972, he ... (be) a very good American president.

I can't cook, but if I ... (can), I ... (can / get) a job in a restaurant.

Finland ... (be) a nice country if it ... (not / snow) so much.

If Hitler ... (win) the Second World War, the world ... (not / be) a nice place today.

If I ... (be) you, I ... (speak) with the teacher.

If water ... (heat), it ... (boil).

If I ... (may / command) the American army, I ... (destroy) all nuclear warheads (Sprengkopf).

If I ... (be) you, I ... (leave) work earlier today.

Except if Mary ... (leave) her boyfriend two years ago, she ... (not / be) in troubles now.

Yesterday I ... (have) breakfast with my parents if it ... (not / be) so late.

John's meeting is in ten minutes. Unless he ... (run), he ... (not be) there in time.

The letter ... (müssen / stamp) if you want to post it.

Mary would not have survived if she ... (not / help) by her neighbour.

If you ... (not / like) kids, you should not become a teacher.

If Peter ... (not / do) well in the training course last year he ... (not / be) our project leader now.

If I ... (have) a million of dollars on my account (Konto), I ... (found) my own company.

Unless the thief ... (shoot) in yesterday's robbery, he ... (can / escape) from the police.