Whoever has sense knows that smoking is harmful to people’s health.A. normalB. usualC. ord

问题补充：

Whoever has sense knows that smoking is harmful to people’s health.

A. normal

B. usual

C. ordinary

D. common

答案：

A. normal

B. usual

C. ordinary

(答案→)D. common

解析：本题考查固定用法。common sense常识。句意为：任何有常识的人都知道吸烟有害健康。