Question

—______ kind girl Nancy is!
—Yes, she is always ready to help others

1. A.
   What
2. B.
   What a
3. C.
   How
4. D.
   How a

Answer 1

B
本题的上句是一个感叹句，what后修饰名词，若为可数名词单数需加不定冠词a或an，how修饰形容词或副词，本题的关键中心词是可数名词单数girl，故用what a，故本题选B。