1. Where were you on December 15th? 2. We are going to get married in July. 3. We often go to the seaside

ago is used to describe a period of time that occurred in the past. The starting point is the moment of speaking, and the end point is in the past. It is often used with expressions of time or to talk about events or situations in the past.

Дополнительный материал: I was at home on December 15th, 2020 (1 year ago).

Совет: Memorize the specific expressions of time when using "ago" because they indicate the starting point of the period.

Задача для проверки: When did the company start?