补全下面的对话。 W：Can I help you?
M：Yes．These {#blank#}1{#/blank#}are nice．Can I try them on?
W：Of course．What size would you like?
M：Size {#blank#}2{#/blank#}，please．
W：Here you are．
M：They're a little {#blank#}3{#/blank#}．
W：Let's try size 36．Are they OK?
M：They're just right!How much are they?
W：They're {#blank#}4{#/blank#}yuan．
M：OK．I'll {#blank#}5{#/blank#}them．
