1. Because they drive carelessly, they get some problems
-> If___________________
2. Keep quiet or I'll scream.
-> If ____________________
3. We don't have enough money, so we don't buy those new comics
-> If _____________________
4. Stop talking or you won't understand the lesson
-> If ______________________
5. She is not free today, that's why she can't go to the movie with her friend
-> If________________________
6. Water these plants or they will die.
-> If__________________________
7. He is so lazy, so he fails in the final exam
-> If ___________________________
8. Because the weather is not fine, the children don't play out door
-> If ______________________________
9. Go right now or you'll be late for the train
-> If _____________________________
10. She doesn't play tennis because she is very old
-> If_________________________