My brirher is twele years old （对画线部分提问）

您好,很高兴为您答疑~
请参考：
1.How old is your brother?2.Lucy is good at swimming.3.She with her perents lives in Shanghai.She lives in Shanghai and her parents live in Shanghai,too.4.划play badminton:What are these boy students do at the weekend?划at the weekend:When do these boy students play badminton?划usually:How often do  these boy students play badminton at the weekend?

每句话表达方式有多种,若有横线条数限制则可能有差异.所以,有疑问请迅速追问,满意烦请采纳,谢谢!
【最快正确】答案,请注意回答时间,尊重回答者.