问题
选择题
There is a great danger if the driver has been drinking alcohol or taking drugs, or _____ by speeding or breaking down traffic laws.
A．showing off
B．showing around
C．showing up
D．showing in
答案
答案：A
考查短语辨析。show off 炫耀，show around领着参观，show up 出现，show in 领入，句意：如果司机一直喝酒或吸毒或通过加速或破坏交通规则来炫耀，会有很大的危险。所以选A。