We don't have to go to school today if it snows.

If there is a tornado, people could get hurt or killed.

If the weather is too hot or too cold, the flowers will die.

The girls will go to the beach if it doesn't rain.

If I buy something today, I won't have money tomorrow.

I will buy an umbrella and a raincoat if the weather becomes cloudy and rainy.

If my sister gives me a dog for my birthday, I will call the dog "Batman".

If I behave well in school, my parents will buy a new car for me.

If we win the baseball game, we will celebrate.

If you need something, please tell me.

If the food tastes bad, complain to the waiter.

If I want to go to the city, I have to leave early in the morning.