一道英语题:Tell him to open the window.(改否定句)

问题描述:

一道英语题:Tell him to open the window.(改否定句)
Tell him to open the window.(改否定句)
——him——to open the window.

Tell him not to open the window.
肯定用tell sb.to do sth.告诉某人做某事; 否定用tell sb.not to do sth.告诉某人不要做某事