the fan is on the desk和you want it合并成含有定语从句的住从复合句，前面为主后面为从需要详细解答步骤和做法…后面的也一样。2.the man is in the next room.和he brought our textbooks here yesterday.3.the magazine is mine和he has taken it away.谢谢大家！！满意我可以再加分！越详细越好，因为我是菜鸟，所以要拿几个例题模仿，谢谢各位，鞠躬！！！
(the fan) that you want (is on the desk)(the man) who brought our textbooks here yesterday (is in the next room)(the magazine) that he has taken it away (is mine)括号里的是主句，中间是定语从句 ，修饰前面的主语...
