Fill in: a/an, the or zero article​

1.My dad works in the office, but he plays rugby at the weekends

2. Nothing is needed

3. He wanted to swim across the Ural river. It flows through Russia and Kazakhstan

4. I'm going to a football match in the UK. My country is playing against an English football team

Объяснение:

We use article "The" to concretise something. We use zero article, when we speak about names, countries, etc.

When we say "UK" or "USA" we use article "the"