If water ___ in the pipes, the pipes sometimes crack.

If you press this button, the machine ___ automatically.

When people don't sleep enough, they ___ mistakes more often.

If the traffic is heavy tomorrow, we ___ the earlier train.

Plants die if they ___ enough water.

If the invoice arrives today, I ___ it before five.

If you heat metal, it ___.

I will phone you if I ___ any news from the clinic.

When the alarm rings, everyone ___ the building immediately.

If she studies every evening, she ___ the exam.

Ice melts if the temperature ___ above zero.

We won't go hiking if the weather ___ dangerous.

If you mix red and yellow, you ___ orange.

I will lend you my ladder if you ___ careful with it.

If a customer complains politely, staff usually ___ more helpful.

If the shop closes early, we ___ groceries near the station.

When you leave milk in the sun, it ___ sour.

If my boss approves the holiday, I ___ the tickets tonight.

If you don't enter the password correctly, the screen ___.

We will cancel the barbecue if it ___ all afternoon.

If you add too much salt, the soup ___ terrible.

I will bring the documents if you ___ the meeting room.

When the battery is empty, the phone ___ off.

If the rent increases again, they ___ to a cheaper flat.

If people exercise regularly, they often ___ more energy.

I won't disturb you if you ___ busy.

If you don't wear a helmet, cycling ___ more dangerous.

She will join us for dinner if her train ___ on time.

When prices fall, customers usually ___ more.

If the printer jams again, I ___ the technician.

If you leave bread uncovered, it ___ dry.

We will start the presentation when the director ___.

If you don't back up your files, you ___ important work.

She will accept the job if they ___ flexible hours.

When the road floods, buses ___ a different route.

If he forgets his medicine, he ___ dizzy.

We won't sign the contract unless the lawyer ___ it first.

If the meeting finishes early, I ___ you at the café.

When students practise speaking often, they ___ confidence.

If the hotel has a room available, we ___ there tonight.