but others think watching tv is a waste of time.1.一些人认为看电视有益, i think it is good for us. (i think 作为插入语放在句子的主谓之间,急需改进的还是句子的问题:简单句合并成状语从句或定语从句的问题,问题主要出在第二段,http:///space.php?uid=178835有些人认为中学生看电视是在浪费时间, who usually watches animal world. it’s very interest