用used to be+adj used to do sth 造句
3个回答

My sister is used to be a quiet. 我姐姐以前是很文静的.

He used to go swimming. 他过去常常游泳

另外used to do sth和used to doing sth是有区别的

used to do sth 表过去常常做某事

如:He used to go swimming. 他过去常常游泳

used to doing sth 表习惯做某事

如:I used to going to school on foot 我习惯走路上学.