kitty and Ben have lunch at about twelve.和Danny,open the door.(改为现在进行时)

问题描述:

kitty and Ben have lunch at about twelve.和Danny,open the door.(改为现在进行时)

Kitty and Ben are having lunch now.
Danny is opening the door ( now).
现在进行时结构:am/is/are + doing (现在分词)she works in the a hospital.(改为现在进行时)She is working in the hospital.