IN 1975, ACCORDING TO THE NATIONAL CENTER FOR HEALTH STATISTICS, T...

91. - 2000 CAU TRAC NGHIEM ANH A B C
2000 CAU TRAC NGHIEM ANH A B C

91. In 1975, according to the national center for health statistics, the average life

expectancy for people born during that year ……….. 72.4 years.

a. is

b. were

c. are

d. was

 d