Not only are cars involved in most of the traffic accidents, but they also __________ .
A.contribute
B.promote
C.refer
D.matter
第1题
A.sensible
B.sensitive
C.severe
D.solemn
第2题
A.obviously
B.surprisingly
C.particularly
D.normally
第3题
A.affair
B.accident
C.incident
D.emergency
第4题
A.have been
B.has
C.was
D.are
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