她是八岁的时候学会骑自行车的.She learned to ride a bicycle _____ the ____ of eight.单词填空!1

问题描述:

她是八岁的时候学会骑自行车的.She learned to ride a bicycle _____ the ____ of eight.单词填空!1

at ... age

She learned to ride a bicycle at the age of eight.