It is up to him to clean our classroom today. 今天应由他做教室清洁。如果还有问题的话，可以去小马过河问问那里专业的英语老师，谢谢！
up to sb 造句 不要太长
It is up to him to clean our classroom today. 今天应由他做教室清洁。
如果还有问题的话，可以去小马过河问问那里专业的英语老师，谢谢！2013-11-01
Which way to choose is up to you.选哪条路由你决定。
然后“由...决定”这种用法应该只能接up to you.2013-11-01
It‘s up to you to decide. 这由你来定。2013-11-01
If you ask me where are we going for a vacation,I will tell you,Is up to you.2013-10-29
He hasn't seen any elephant up to the present day．他到现在也没有见过大象2013-10-29
