1- If you practice your English often, (it will improve)
2-If I looked like him, (I woud be be great)
3-If it rains on their wedding day, (we'll cancel it)
4-If you read this English book, (you will learna lot)
5-If they cheated in the test, (it would be reported to the dean)
6-If you eat too much chocolate, (you'll get fat)
7-If I take more classes, (I'll do well at the exam)
8-If the motorway had been less busy, (we would have got there in time)
9-If you look at the picture closely, (you'll see it's a fake)
10-They will buy the textbook… (if you recommend them to)
11-You would learn more… (if studied harder)
12-I will get the new car… (if I am rich)
13-He gets very angry… (if you talk to him this way)
14-We would be happier… (if we had more free time)
15-He will pass next time… (to take)
16-The cat purrs… (if you stroke it)
17-People in Brighton will get upset… (if it rains next Sunday)
18-They would tell us… (if they wanted to)