互动封闭仿真课堂1、智能交互 2、电子板书式视频教学 3、5分钟一次互动问答 4、封闭课堂
You should never accept an invitation unless you really plan to go. You may refuse by saying，“Thank you for inviting me，but I will not be able to come.” If，after accepting，you are unable to go，be sure to tell those who are expecting you as soon as possible that you will not be there. Although it is not necessarily expected that you give a gift to your host，it is considered polite to do so，especially if you have been invited for a meal. Flowers，chocolate，or a small gift are all appropriate(合适的)。A thank-you note or telephone call after the visit is also considered polite and is an appropriate way to express your appreciation for the invitation.
1. What can you do when a British friend says，“Drop in anytime”?
A. Visit him or her at any time. B. Say no time to him or her seriously.
C. Telephone him or her before visiting. D. Visit him or her soon.