1.If I had a million dollars,I will donate it to do medical research.
2.If tomorrow the rain stopped,we'll go picnic.
3.If there is no air,people will die.
4.If you fail to study hard,you failed in the exam.
5.If he is you,he would tell the truth.
6.If he does not hurry,he would miss the car.
7.If today is Sunday,I will not go to school.
8.If he knew the answer,he will show of hands.
9.If I were a teacher,I will tell my students is very severe.
10.If you come to my house,I will be very happy.