题目：
句型转换。
1. I'm playing soccer on Monday.(就画线部分提问)
__________ __________ ___________ __________on Monday?
2. Can you come to my party on Monday at 19:00?(改为同义句)
__________ __________ __________ __________ come to my party on Monday at 19:00?
3. He can't join us because he has to help his Mom.(就画线部分提问)
__________ __________he __________ us?
4. I have a really busy week.(改为同义句)
I am__________ ___________this week.
5. Do you want to have dinner with me on Friday night? (作否定回答)
__________ __________, but__________ __________. I have to study.
答案：
1. What are you doing
2. Do you want to/Would you like to
3. Why can't, join
4. really busy
5. I'm sorry, I can't
