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；

·承諾會自學所缺內容并按時交作業；

·祝他偷快。

Tom is a careless person. He forgot ____ the door again when he went out yesterday.

• A、to lock
• B、locking
• C、to have locked
• D、having locked

The sweater she received in the end differed ____ the one she had seen online.

• A、by
• B、in
• C、with
• D、from