1) If I had known that you were ill last week, I`d have gone to see you. 2) Tom wouldn't have entered for the examination if he had known that it would be so difficult. 3) It`s good that Ann reminded me about Tom`s birthday. I would have forgotten if she hadn`t reminded me. 4) I`d have sent you a post card while I was on holiday if I had had your address. 5) We might not have stayed at this hotel if George hadn't recommended it to us.
1) If I knew her number, I would telephone her. 2) I wouln't buy that coat if I were you. 3) I would give you a cigarette if I had one but I`m afraid I haven`t. 4) If you didn't go to bed so late every night, you wouldn`t be so tired all the time. 5) I wouldn`t mind living in England if the weather was better.