Usage of Articles in English

First Mention

I saw an old woman and a dog in the park

Jobs

Paula is a teacher

Descriptions

Paris is an interesting city

Second Mention

I saw a man in the park. The man was old

Specific things

The children are in the garden

Only one thing

The Moon looks beautiful tonight

Common places

We are going to the park

Superlatives

He is the best father in the world

Musical instruments

I can play the piano

General Meaning

I don't like children

Meals

What time do you eat dinner?

Years, months, days

2016 was the best year of my life

TV

There's a good film on TV

Languages, School subjects

I'm learning French

Next, Last

We went to the theater last week