Complete with the past simple of the verbs in brackets. give short answers where necessary.

explain (объяснять) – explanation (объяснение)

know(знать) – knowledge (знания)

inform(информировать) - information (информация)

progress(развиваться) – progress (развитие)

1) i'm a happy owner of my own house.2)i built it myself.

3)my house is a very big mansion.

4)it's a modern house.