I'm having a birthday party为什么改为一般疑问句后 变为Are you having a birthday party?而不是 Are you have a birthday party?

now i'm having I'm having a science lesson.(对画线部分提问) Don't call me __now.I'm having a meeting I’m having a bad bad day是什么歌曲 Don't call me?now.I'm having a meeting I'm having a great time her beijing I'm having a great time.写出同义句 I'm having a fantastic time here at the I'm having a great time.【写出同义句】 I’m having trouble ____foreigners.A-understand B-understanding No.I'm not having a picnic的问句 I’m proud of having such a great father i m also a little worried b_ I'm having a lot of headaches I'm having a great time.(写出同义句） I'm ____ _____. I always dreamed of having a college education, and now I'm getting one.f翻译 i always dreamed of having a college education and now i'm getting one is having 意思I'm sorry she ____ shower now,could you ring back later?A hasB havingC is having i am having a hard