--- you ---- your homework Yes,l---it a moment ago.A have done finished B did do finished C have done finished D will do finish 选A为什么?我想选B感觉比较对!这里的语法是什么?

问题描述:

--- you ---- your homework Yes,l---it a moment ago.
A have done finished B did do finished C have done finished D will do finish 选A为什么?我想选B感觉比较对!这里的语法是什么?