问题描述:
好的,我一定会追分的
他从四岁起就开始弹钢琴了
He ________ __________ ___________ the piano when he was four years old.
他从四岁起就开始弹钢琴了
He ________ __________ ___________ the piano when he was four years old.
问题解答:
我来补答展开全文阅读