Could you please give me some advice on how to learn Yoga?中的advice为什么不用加s

could you hold please? could you please turn —Dick,（can）I use your e-dictionary?-----Yes,please.（could）you giv—Dick,（can）I use your e-dictionary?-----Yes,please.（could）you give it to Mike after you use it?这里不能用may,might吗 could you please的用法 could you please 的答语 could you help me ,please?( ) could you please 用神魔回答 could you please tell me Could you please和 Could I please 句型Could you please.5个 Could I please 3个 Could you please ...和Could you...有什么区别 could you please clean your room翻译 Could you help me , please?怎么回答 Could you please tell请告诉我意思 Will(Wouid,Could)you please.造句 Could you please talk about your family? Could you please clean your room? could you please clean your room? could you make apple tea please?翻译