请解释下面这句的英语语法：Cathy,I'm having a dinner party tonight.

请解释下面这句的英语语法：Cathy,I'm having a dinner party tonight. I have known Cathy for over twenty years.同义句 改成：I have known Cathy for （）（）twenty years. 详细分析这句英语语法.The only person I know who has a skeleton in thecupboard is George Carlton请分析这句英语语法. 帮忙解释下面这句英语.I think i am scard to meet you on sunday 用R语言估计参数值 请帮忙解释下面这段R语言程序每句的含义,> N x1 x2 n pai for(i in 1:N){+ x1 下面这句英语语法是否正确在我就职确定后应该做什么What should I do when I was decided to be employed? 这句英语语法改错Satisfying and happy,i ate thechocolates 英语语法 请告诉我这句英语语法我用错在什么地方了 （如图） 请写出下面句子的同义句.I don't know.的同义句. cathy的含义 cathy的意思 Cathy的意思 请解释下面这句话的意思晴日万株烟一阵,闲坊兼是莫愁家. play i often chess weekends with cathy on aunt连词成句 各种英语语法的详细解释 How should I greet,with silence这句是什么意思? 请各位大虾懂的翻译下,解释下意思,谢谢 请看下面这句英语语法有什么不对么?请纠正下,this is what I have heard so far the most happy discourse is the most beautiful words now,so I feel very happy,It gives me positive energy,and inspires me forward!“只要我累了，渴 请解释下面这些成语的含义.