Mary is 12 years ago she was twice as his brother,John.How old was Mary when John was born?

分类: 作业答案 • 2021-12-31 13:00:23

问题描述：

Mary is 12 years ago she was twice as his brother,John.How old was Mary when John was born?
要英文和中文,

答

She was seven years old,她七岁