in their opinion 中的 opinion有复数么?

in their opinion 中的 opinion有复数么? 为什么in their opinion中的opinion不加s? in their opinion还是 in their opinions? in their opinion opinion后是否加s in their opinions还是in their opinion如题 是in their opinion还是in their opnions如题 in one's opinion中的opinion加不加s in my opinion中的opinion可以加s吗 In my opinion,the students had better finish their college In my opinion,students should not be judged by___ they have achieved in their study 求英语高手来指出作文中的错误Many student are inclined to talk with their penfriends.They seldom take care of their parents.In their opinion,their parents always don't like them to do this or that.They believe that only their penfriens c 哪位能肯定的回答in their opinion后加s吗? people is limited for expression their opinion in some country 有语法错误么?谢谢! In my opinion,their friendship has survived the passage time.如何翻译. in my opinion 这句话中的定语与定语从句You are going to hear a personal opinion on why women are not given the same chances in their careers as men.我认为“on why women are not given the same chances in their careers as men”是定语,那why women in one’s opinion是什么意思? in one's opinion=?