Cách sử dụng
'Ago' is used to talk about past events. You can use it when you talk about how long ago something happened. For example, "I finished my dinner an hour ago" means that you finished eating an hour in the past. Another example, "She started working for the company six months ago" means that she began her job six months before the present time. 'Ago' is always used with a specific time period either in the past or 'before now'.