She has been on cloud nine since she received the good news.

This is the ninety-seventh time I have visited Paris.

She finished in ninety-seventh place.

The seventeenth centuries have been a period of great changes.

The seventeenth centuries were a period of great changes.

Seventhly, we need to discuss budget planning.

Seventeenthly, we need to examine the financial implications of this decision.

The seventh years are often the most memorable.

The seventh graders are preparing a theatrical performance.

The twenty-seventh anniversaries are always special.