children usually begin to go to school at the a________ of six (首字母填空)

问题描述:

children usually begin to go to school at the a________ of six (首字母填空)

quater
a quater of意思是四分之一,整句翻译是:孩子们通常在六点十五分开始去学校

age (at the age of...……岁时)