Раскройте скобки, образуя условные предложения : 1. if they had remembered your address, they (to send) you a posteard. 2. if tom saw a car crash, he (to telephone) the police. 3. if you are not sure, what to say, you (to have) to guess. 4. if she ( not to be) very ill, she wouldn't have been absent from english. 5. if my perents had god seats, they (to enjoy) the play last night.
would phone
will have
hadn't been
would enjoy