⑴He is sad today. Do you know why?     

⑵What are you doing?     

⑶Why do they change their homes?     

⑷Does Bob like his new school?     

⑸What's in your bedroom?     

A. I'm washing clothes in the bathroom.

B. Yes, he does.

C. Because he can't find his new pen.

D. There is a bed, a desk and a computer.

E. Because they can find enough food.