If the temperature ______below zero, the water __________.

If the sea water continues to be polluted, many fish species ______ extinct.

If you _____  to take a bus to school now, I ____ you a lift a little later.

If I _____  you, I ____ learn one more language.

I would have crashed the car _____.

Choose the best answer.

If you spoke more slowly, he _____ you.

The plants ____ if they don’t get sunlight and water.

Lan wishes there ______a smart board in her classroom

The driver in front stopped so suddenly. Therefore, the accident happened.

We’ll get wet if we ______ out.

If Tom ______ an alarm, the thieves wouldn't have broken into his house.

__________more help, I will call my neighbor.

If you want your tea sweeter, you _____ need to add some more milk or sugar.

We're going to start painting the house tomorrow_____ it's not raining.  

If local people drink this untreated water, they _______ have cholera.

You won't pass the examination_____ you study more.