将左右两部分搭配，使其成为通顺的句子。①Is she in the study?{#blank#}1{#/blank#} A. It's on the desk.
②Is this your bedroom?{#blank#}2{#/blank#} B. No, they aren't.
③Where's my pen?{#blank#}3{#/blank#} C. No, it isn't.
④Are they on the chair?{#blank#}4{#/blank#} D. Yes, she is.
⑤Where are my books?{#blank#}5{#/blank#} E. They are on the bed.
