with 后面跟一些工具之类的东西:He writes with a pen.他用钢笔写字.
in 用语言等：speak in English 用英语说
四个说的用法：
1 speak 用具体的语言说,如：Please speak in Chinese.请用汉语讲.
2 talk 谈论,talk with sb 和某人交谈、talk to sb 和某人谈话
3 tell 告诉,tell sb sth = tell sth to sb 告诉某人没事
4 say 说（要有具体的内容,如：He says that...他说.（后面跟具体说的话）,如果没听清楚别人 说什么,可以说：say it again,请再说一遍.
四个花费的用法：
1 spend 花费,人作主语,花钱或时间做某事有两种固定句式：
1 ）sb spend +钱/时间 on sth.
2） sb spend +钱/时间(in)doing sth(其中in可以省略).如：
我花50元买了这件大衣：I spent fifty yuan on the coat.
I spent fifty yuan (in) buying the coat.
我干这项工作用了3天.He spent three days on the work.
He spend three days (in）doing the work
2 pay 花费,人作主语,有“付款”之意：sb.pays＋钱 for sth花.钱买某物,如：
I paid fifty yuan for the coat.我花50元买了这件大衣.
3 cost花费,物作主语,sth.costs sb＋金钱：买某物花了某人.钱.如：
A new computer costs me a lot of money.买一台新电脑花了我一大笔钱
注意：cost没有被动式哦
4 take 花费,it 作形式主语.句式：It takes + sb．+ 时间（或钱）to do sth．如：
It took me three years to draw the beautiful horses.画这些漂亮的马花了我3年的时间.
It will take me three hours to finish my homework.我要花3小时才能完成作业.
