英语（补全对话,一空一词）
A:Good evening!What can I do___you?
B:I'm looking for a pair of black shoes.
A:What size ___you want?
B:Size 10.
A:Sorry,I'm afraid we haven't___any black ones in that size___the
moment.We've got some brown ones.
B:Have you got any other kind?
A:___about those shose over there?
B:Well,that pair looks nice.How___do they cost?
A:Two hundred yuan.
B:Hmm,that'sa bit expensire.Can I try them___?
A:Certainly.
注意：一空只能一词___