高一英语选择
问题描述：
高一英语选择
The teacher was so angry at all ____ he had done that his face turned red.
A.that B.what
答案是A,我选B的为什么不是B啊.求解答!
答
句中先行词为“all”,that为关系代词,意指all,在从句中做宾语；是在无法理解你记住AII的后面用that就是了.