1.If my brother has enough money, he will buy a bicycle

2.If Peter doesn't study hard, he can't get good marks

3.If he had time, he wouldn't have read this novel

4.If I can't write to Linh, I don't have her address

5.If my sister had a terible headache, she wouldn't be absent from her class

6.If i get a work permit, I will stay forr another month

7.If Windy didn't come, we could cancelled the meeting 

8.If You be patient, you will make mistakes

9.If she is very shy, she won't enjoy parties

10.If I didn't see the signal, I didn't stop

11.If it doesn't rain, there will be a shortage of water

12.If the teacher was very angery, his pupils did their homework carelessly

13.If it stops raining, we won't go out

14.If we without the sun, we wouldn't exist

15.If she was late, she missed the bus

Cj ơi đây ạ.