He made a model of a dodecahedron.

I eat lunch at twelve o'clock.

My younger sister is twenty-one years old.

Our project is scheduled to be completed on the twentieth day of the month.

I will turn twenty years old next year.

He was working abroad for twelve months.

I was surprised when I saw his dirty room.

I bought new at-home clothes.

The adult son who still lives at home is causing trouble for his parents.

The room rent is too high, so I'm looking for a new apartment.