为下列句子选择正确的答语。
A. She is jumping rope.
B. I'm in the study.
C. I'm singing.
D. They're drawing pictures.
E. There're two bedrooms, a living room, a kitchen and a bathroom.
1.What are you doing? (_______)
2.Where are you? (_______)
3.What is Lanlan doing? (_______)
4.What's in your new house? (_______)
5.What are the boys doing? (_______)