Improve the grammar of this text: Let's suppose, for xample, that average life span is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average life span of a person is 80 years.
The average