补全下面的对话。
W：Can I help you?
M：Yes．These ____are nice．Can I try them on?
W：Of course．What size would you like?
M：Size ____，please．
W：Here you are．
M：They're a little ____．
W：Let's try size 36．Are they OK?
M：They're just right!How much are they?
W：They're ____yuan．
M：OK．I'll ____them．
