1.do,whose, you,think,book,this,is,连词成句 2什么时候用on time 什么时候用i

whose book do you think is this?你觉得这是谁的书?
on time 是按时,准时的意思,in time 是及时的意思
再问： 到底你们俩谁的对啊
再答： whose book do you think is this?这个对，这个是纯正的英语说法
再问： Do you think whose book this is. 对吗？
再答： Do you think whose book this is.错的一塌糊涂，whose book is this？do you think 是作为插入语的。所以whose book do you think is this?