6.

Choose the best topic sentence for the passage.

It used to be unusual to live to the age of 90. Better diet and medicine have made 90 a more common age. Today, some people even live to be well over 100.

People are living longer than ever.

People can live a long time.

It used to be unusual to live to the age of 90.

1 answer

The best topic sentence for the passage is:

People are living longer than ever.

This sentence effectively captures the main idea of the passage, which discusses the increasing lifespan due to better diet and medicine.