Is she studying?
No, she isn't
Are they dancing?
Yes, they are
What is he doing?
He is doing the homework/ He is studying
Is she riding a bike?
No, she isn't
Is the plane flying in the sky?
Yes, it is
What is the girl doing?
She's listening to music
Are they swimming?
No, they aren't
Is he wearing trousers?
No, he isn't
Is he wearing a T-shirt?
Yes, he is
What is the girl doing?
She's watching TV
What is the girl wearing?
She is wearing a (long) skirt
What is the man wearing?
He's wearing a (small) hat
Is the woman wearing a light blue dress?
Yes, she is
Is the man wearing small shoes?
No, he isn't
Is the man wearing big shoes?
Yes, he is
