单项选择题
A．the driver of the first car B．the driver of the second car C．the driver of the third car D．both B and C
A．drove very, very fast B．killed another driver C．killed himself D．both A and C
A．was very busy though there was a new motorway B．was never very busy C．was always very busy and dangerous D．was very busy and dangerous before the construction of the new motorway