I don't mind ______for a little while before you finish_______the letter.waiting,to writewaiting,writingto wait ,to writeto wait,writing

I don't mind ______for a little while before you finish_______the letter.waiting,to writewaiting,writingto wait ,to writeto wait,writing
I don't mind ______for a little while before you finish_______the letter.
waiting,to write
waiting,writing
to wait ,to write
to wait,writing

I don't mind ______for a little while before you finish_______the letter.waiting,to writewaiting,writingto wait ,to writeto wait,writing
我记得mind和finish都要加doing的.

B
mind doing
finishi doing
都是一般的语法

waiting,writing

应该是最后一个答案

waiting, writing
mind doing sth.
finish doing sth.都是固定用法
mind doing sth.介意做某事
I wonder whether you would mind doing me a favour.
不知你能不能帮我一个忙。
finish doing sth.完成做某事

选B。两词后都要是动名词形式

waiting,writing