Chuyển sang unless 1 if i meet him, i will tell him to come see you immediately 2 if Julia had repaired this old computer, he could have used it for another two year 3 if I were you, I would go to that seminar for more expertise 4 you can do everthing more perfectly if you listen to what I say 5 if he wins the contest this time, he will be very rich….. 6 if she worked lazily, she would be fired 7 if jenny has more time, she will complete the entry very much better 8 if it rains heavily, everyone has to postpone fight to Tokyo 9 if I had know that you felt tired, I would have come to drive you 10 if jack cleans his house clean, he will be rewarded with candy from his mother