57.The tragedy was caused by ____.
A.Blues' lack of driving experience
B.the motorist’s failure of seeing the stop sign
C.Blues' poor car conditions
D.the motorist's absence of mind while driving
56.What happened to Patricia Blues last November? ____.
A.She was seriously injured in a car crash
B.She lost her daughter in a road accident
C.She broke the traffic rules at a bus stop
D.Her vehicle was destroyed by a motorbike
54.A.putting B.contributing C.owing D.taking
53.A.change B.lower C.reduce D.improve
52.A.mixed B.cooked C.done D.joined
51.A.lead B.compare C.add D.owe
50.A.as to B.thanks to C.but for D.in spite of
49.A.rare B.ordinary C.popular D.modern
48.A.with B.of C.by D.in