Change the forms of the following sentences. 句型转换。
1. I can go to the park with you this afternoon.（改为否定句）
2. Danny is making a call.（对画线部分提问）
3. I know his phone number.（改为一般疑问句）
4. I'm in a school.（对画线部分提问）
5. See you later!（改为同义句）
1. I can't go to the park with you this afternoon.
2. What's Danny doing?
3. Do you know his phone number?
4. Where are you?
5. Good-bye !