She exerise twice a week 对 twice 提问
问题描述：
She exerise twice a week 对 twice 提问
答
How often does she exercise?"How often"对频率提问.还会有许多,比如“How soon”对时间提问,用于将来时,意为多久以后,常用“in+一段时间”回答."How far" 对距离提问.“How long”对一段时间提问等.有必要记一下哦!