摘要：
Lesson Eleven Is this your shirt?Whose shirt is that?Is this your shirt, Dave?No, sir.It’s not my shirt.This is my shirt.My shirt’s blue.Is this shirt Tim’s?Perhaps it is, sir.Tim’s shirt’s whiteTim!Yes, sir?Is this your shirt?Yes, sir.Here you are.Catch!Thank you, sir.Lesson Thirteen new dressWhat 阅读全文
