It is thein this country to go out and pick flowers on the first day of the spring.A. useB

问题补充：

It is thein this country to go out and pick flowers on the first day of the spring.

A. use

B. custom

C. habit

D. normal

答案：

A. use

(答案→)B. custom

C. habit

D. normal

解析：考查词义辨析。use 用途，custom 风俗习惯，habit 个人养成的习惯，normal正常的，句意：在这个国家在春天的第一天玩出摘花是一个风俗习惯。故选B。