Questions 22-25 are based on the following passage. What was the average price of a recently made car in 1960

A．Priority should be given to listening.
B．It’s most helpful to read English newspapers every day.
C．It’s more effective to combine listening with reading.
D．Reading should come before listening.

A．have helped solve the problem of so high death rate
B．have oddly accounted for mortality rates in the past century
C．have reduced mortality rates for violent and accidental deaths
D．have achieved no effect in bringing down the number of deaths