He used to put his bag on the seat next to him and and pretend(這里的pretend是與put相同用原形，還是與used相同用pretended） that it belonged to a friend who had gone to buy something in the station.

熱心網友

用pretended，原因不細說！

熱心網友

應該用pretend,because

熱心網友

used to put.... and used to pretend....其實只要正確理解全句的意思，這道題目就不存在任何問題了:他過去經常把他的包放在身旁的座位上,裝作那是個去站里買東西的朋友放的.整個句子，都是過去常常做的一個動作。