Question

（2006，沈阳）________lovely weather! Let's go on a picnic.

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

Answer 1

A
本题主要考察weather为不可数名词，不能加冠词a。感叹句用what开头修饰名词，用how开头修饰形容词或副词。