打发时间的网游:Jim's parents watch TV on Sundays

Jim's parents watch TV on Sundays in his parents' house 和at Jim's house中in和at的使用有什么区别？ Jim's Gallery that's jim-dandy.是什么意思啊? Jim sits on mary's left . 改为同意句. Jim sits __ __ Mary. jim must help his parents babysitting his sister tomorrow 改错 The football on the floor is Tom's. Tom's parents are ___ work. 请问It's very important for parents to be there for their children Mary's teacher will talk to her parents the other afternoon.帮忙找错 To what degree can parents be held responbile for a child's behavoir? 翻译