What is it doing?该怎样回答?

What is it doing?该怎样回答? What is it doing what is your favorite color?该怎样回答 What is your mother doing when it is raining?回答应该用什么时态? What is she doing 怎么回答 What is your mother doing怎么回答 what is the bird doing?怎么回答? when is it doing now?的回答 what is it doing的意思是什么 what is behind the classroom building?该怎样回答 what color is it回答 If I understand what is love ,it is you doing .