给下列句子选择合适的答语。① How do you like this chess? {#blank#}1{#/blank#} A. It's$50.
② How much is this sweater?{#blank#}2{#/blank#} B. Yes How much is it?
③ The socks are $50. {#blank#}3{#/blank#} C. It's very pretty.
④ Can l help you? {#blank#}4{#/blank#} D. They're too expensive.