情景搭配。①Can I help you?{#blank#}1{#/blank#} A. Medium, please.
②Are you a student?{#blank#}2{#/blank#} B. Yes, I want a sweater.
③Is she your aunt?{#blank#}3{#/blank#} C. We are next to the library.
④Where are we now?{#blank#}4{#/blank#} D. Yes, I am.
⑤What size do you want?{#blank#}5{#/blank#} E. No, she is my sister.