the children took __active part in the activity Athe children took __active part in the activityA,aB,anC,theD,/
问题描述：
the children took __active part in the activity A
the children took __active part in the activity
A,a
B,an
C,the
D,/
答
B,an
take an active part in 扮演一个只要的角色
祝学习进步!