the teacher gave me a piece of paper to write on,还是to be written on?请说明理由.
问题描述：
the teacher gave me a piece of paper to write on,还是to be written on?请说明理由.
答
to write on.这道理和 I have a lot of things to do.是一样的.有了to, 就不需要被动了,这是英语的惯常用法