Many visitors come to Beijing because it is city.A. so a beautifulB. very a beautifulC. s

问题补充：

Many visitors come to Beijing because it is city.

A. so a beautiful

B. very a beautiful

C. such beautiful

D. quite a beautiful

答案：

A. so a beautiful

B. very a beautiful

C. such beautiful

(答案→)D. quite a beautiful

解析：句意：因为北京是一个非常美丽的城市，许多游客来到北京。very修饰形容词时，若有a/an要置于a/an之后，意为非常，很。quite意为相当，修饰形容词时要置于a/an之前。such修饰形容词时也要要置于a/an之前。故选D。