spend an hour on ……和spend an hour in……有什么区别?如题

spend an hour on ……和spend an hour in……有什么区别?如题 spend an hour doing sth.和spend an hour to do sth.哪个对? 12.I spend half an hour on TV every day.(同义句转换) It _________ _________ half an hour ________ I spend an hour going to the bus stop on foot=( )( )( )an hour( )( )to the bus stop? ()1.I spend only half an hour on my homework____every day.So I can spend much time on my hobbies. i spend an hour day -- my homework.A.on B.in C.at D.for ___________?I spend about an hour jogging. I usually spend an hour ______my homework spend加什么动词ing?为什么 do you often spend half an hour （ on ） your homework every day 为什么用on thanks He spend an hour working out the math problem.的意思和同义句 it will （）you an hour to get there on foot答案是take为什么不是spend I___three hours on the homework and it will__me another hour for the husework.A.have spend,take B.spend.need have C.take,spend D.need,take我的答案是A.求正解以及思路……谢谢 on an hour与in an hour的区别 I spend about an hour a day( )(read)english Does Sandy spend an hour _ (read) Chinese every day? I spend half an hour ___to school.为什么填getting? I spend more than an hour in watching TV. 改错 Passing each level will spend you about an hour.