Zero Conditional

If you _____ water to 100 degrees celsius, it _______.

• heat, boil

• heated, boiled

• heats, boils

• heat, boils

If children don't obey their parents, they _____ (be) usually punished.

If you _____ a headache, you usually _______ an aspirin.

• have, take

• had, took

• have, took

• have, taken

If you _____ in the sun too long, you ______ sunburnt.

• sit, got

• sit, get

• sat, got

• sit, gotten

If I ___________ (not/sleep) enough, I ______ (feel) tired.

• don't sleep

• feel

• doesn't sleep

• felt

If you _______ to succeed in life, you ________ to work hard.

• won't, have

• want, had

• wanted, had

• want, have

If you press that switch, the light _______ on.

When you _________ (fly) budget airline, you ________ (have) to pay for your drinks and snacks.

• flies

• fly

• have

• had

If people _________ (not eat) they ________ (die).

• die

• dies

• do not eat

• did not eaten

Ice _________ when you ________ it in water.

• floats, drop

• float, drops

• floated, dropped

• floats, drops