1) When I arrived home, my mother had tried to call me.2) She had called twice before seeing me.3) We had already studied those chapters when John told us about the test. 4) You had never done such a silly action. 5) We had no car by the end of the year.We had sold our old one. 6) I spoke to Susie an noon; someone had told her the news earlier. 7) The plane had taken off when he got to the airport. 8) I was so tired last night. l had had such a terrible day. 9) The shop was closed because the shop assistant had left before closing time. 10) The robbers had spent all the money when the alarm rang. 11) Mark slept all morning because he had been at a club the night before.12) She had left by the time I called her. 13) The party had not started by the time I arrived.