给下列问句选择相应的答语。① What is Chen Jie doing? {#blank#}1{#/blank#} A. They're eating dinner.
② What are you doing? {#blank#}2{#/blank#} B. No. she isn't
③ Is she cooking? {#blank#}3{#/blank#} C. She is listening to music.
④ What are they doing? {#blank#}4{#/blank#} D. I'm drawing a picture.
