Ответ:

If she invites me, I will go.

If it rains, we will stay inside.

If I have time, I will call you.

If she studies hard, she will pass the exam.

If you buy me a drink, I will be grateful.

If you go out, please lock the door.

If he succeeds, he will be happy.

If he doesn't survive, his family will be devastated.

If the drought continues, crops will fail.

If I get a promotion, I will celebrate.

If we are late, we will miss the beginning of the movie.

If you ask more politely, I might consider helping you.

If I go, I will send you a postcard.

If they cancel the flight, we will have to find another way to travel.

If I buy a car, I will need to save money for insurance and maintenance.

If you go without her, she will be disappointed.

If I buy you dinner, please don't behave badly.

If he wins the first prize, his mother will be proud.

If he gets proper medical care, he will recover faster.

If you throw the ball, I will catch it.

If we continue to harm the environment, plants and animals will suffer.