Question

She was so angry at all ________ her son was doing ________ she shouted at him．

1. A.
   what; that
2. B.
   that; what
3. C.
   that; that
4. D.
   which; which

Answer 1

C
本题题干中有一个定语从句，先行词是all指的是物，故关系代词只能用that，可排除A和D项；根据句意很显然，本句中包含一个so…that…结构，意为“如此……以致……”。