A: beautiful city! B: Yes. Lots of tourists come to visit it every year.A. HowB. WhatC.

问题补充：

A: beautiful city!

B: Yes. Lots of tourists come to visit it every year.

A. How

B. What

C. How a

D. What a

答案：

A. How

B. What

C. How a

(答案→)D. What a

解析：what a +adj n©单数+主谓，本句的主谓省略了，故选D