Visiting the Dentist

摘要：

Dear Big Mouth English readers,
Do you have good teeth?
Once or twice a year,we should visit the dentist to check our teeth.Today,Bill is visiting the dentist.Let's read and see how it goes.

在线出版日期：2021-11-23（万方平台首次上网日期，不代表论文的发表时间）

页数：共6页

页码：10-15