People in China don’t like hugging each other when meeting which a common in some Euro

问题补充：

People in China don’t like hugging each other when meeting, which a common in some European countries.

A. are, practice

B. is; exercise

C. are; exercise

D. is; practice

答案：

A. are, practice

B. is; exercise

C. are; exercise

(答案→)D. is; practice

解析：考查主谓一致和名词：句意：中国人不喜欢见面的时候拥抱，这在一些欧洲的国家是一个惯例。因为这个定语从句修饰的是hugging，所以定语从句中谓语用is，第二个空填practice，commom practice“惯例”，选D。