buy fruit 买水果     some grapes 一些葡萄   how many kilos 多少公斤   three kilos三公斤   I’d like --- 我想要------    Here you are. 给你.  
these apples这些苹果 those oranges那些桔子 these or those这些还是那些   Can I help you?我能为你效劳吗? (营业员用语) The red ones 那些红色的    eight yuan 8 元

Thank you very much