这句话有语法错误吗 which 作什么成分 which 后面应该加 its Fluoride takes action in saliva,enhances the function which its prevention of sick tooth.前面是一个句子,后面用which引导一个从句,这样的结构对吗 翻译

which is the correct one?这句话有语法错误吗? 这句话有语法错误吗 which 作什么成分 which 后面应该加 its Fluoride takes action in saliva,enhances the function which its prevention of sick tooth.前面是一个句子,后面用which引导一个从句,这样的结构对吗 翻译 这句话有语法错误吗 Which side of the street is the cleanest?这句话有语法错误吗? Below is the auditing guideline which I checked.这句话有语法错误吗? 关于which的语法This problem is which the teacher explained yesterday 这句话有语法错误吗? 英语翻译：这句话有没有什么语法错误 we had a disscussion about which place is better to live in,city or country?这句话有语法错误吗? i am looking for a pen which is red这句话有语法错误吗?如果有请指出（忽略大小写, Which way do you perfer,travelling with a tour guide or not?这句话有语法错误吗? English is my favorite,which is also what I am good at.这句话有语法错误吗?如有请斧正! thire pursuit is the same thing which we called happiness.这句话有没有语法错误, If your price are favorable 这句话有什么语法错误? 请问I wanna everything goes well这句话有什么语法错误吗? never forget someone love you forever这句话什么意思,有语法错误吗 He is a good player of basketball.这句话有什么语法错误吗? There is a football on the playground.这句话有什么语法错误吗? SORRY~I cannot scatchs your dog words 这句话有什么语法错误吗?