Writing: For this part, you are supposed to write an e-mail in about 100 - 120 words based on the following situation. Remember to write it clearly.

你(Li Yuan)下周一因為要去參加演講比賽，不能上外教(Prof.Smith)的寫作課。請給他寫一封e-mail，內(nèi)容包括:

·請假并表示歉意；

·解釋不能上課的原因，如比賽的重要性；

·承諾會自學所缺內(nèi)容并按時交作業(yè)；

·祝他偷快。

57.

What is the purpose of creating the AlDA model?

• A、To promote potential sales.

• B、To simplify the daily business

• C、To describe the types of markets.

• D、To lay the foundation for advertising