การใช้ For , since , and ago

การใช้ For , since , and ago We use for and since to say how long A: - Rachel is in Brazil. She has been there for three days. - Rachel is in Brazil. She has been there since Monday เราใช้ for กับ since ต่างกันอย่างไร มาดูกันค่ะ! B: ago ago = before now - Ji Yoo started her new job three weeks ago. (=three weeks before now) - "When did Tom go out?" :Ten minute ago" (= ten minute before now) - I had dinner an hour ago. - Life was very different a hundred years ago.