Conditionals - zero, first & second

Put those plants in the sun. If they don't get enough light, they ______________. (die)

If he were a young man, he ......................................... (BE ABLE) to walk faster

When she gets up in the morning, she ________ (start) texting her friends.

If the girl doesn't get better, I ______ (have) to call the doctor.

The menu appears on the screen if you ________________ this button twice. (press)