2) If it hadn't been cold, they wouldn't have lit the fire.
3) If she studied more, she would be a better student.
4) They wouldn't have seen the Queen if they hadn't visited London on that day.
5) If you should win that competition, you will be rich.
6) If I lived in France, I would speak French well.
7) If they had locked the doors, the burglars wouldn't have got in.
8) We will have a party if Alan passes his driving test.
9) I will give John your message if I should see him today.
10) They wouldn't had any money if their cousin hadn't lent them some.
11) Those plants don't grow if you don't water them.
12) I would buy that bag if it had been cheaper.
13) If she had opened the letter, she would have been surprised.