问题标题：
【Theyplaycomputergamesafterclass改为被动语态Theyplaycomputergamesafterclass.HeinventedTVin1927.Wegiveawaymanybookstochairtylastweek.】
问题描述：
Theyplaycomputergamesafterclass改为被动语态
Theyplaycomputergamesafterclass.
HeinventedTVin1927.
Wegiveawaymanybookstochairtylastweek.
汤士华回答：
computergamesareplayedbythemafterclass
TVwasinventedbynimin1927
Manybooksweregivenawaytocharitybyuslastweek
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