In 1975, according to the National Center for Health Statistics, the average life expectancy

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Choose the answer among A,B,C,D whose underlined part needs correcting to make sentences below complete:

In 1975, according to (A) the National Center for Health Statistics, the average life expectancy for people born (B) during (C) that year is (D) 72.4 years.

according to

born

during

Giải thích

Chọn D

“is” - > “was”. “in 1975” là cụm chỉ thời gian trong quá khứ, vì thế to be cũng phải chia ở thì quá khứ