The last half of the nineteenth century( )the steady improvement in the means of travel. A.has witnessed B.was witnessed C.witnessed D.is witnessed
The last half of the nineteenth century( )the steady improvement in the means of travel.
A.has witnessed
B.was witnessed
C.witnessed
D.is witnessed
B.was witnessed
C.witnessed
D.is witnessed
参考解析
解析：考查过去时。句中所填动词后跟宾语，为主动语态。因此排除表示被动的B、D两项。A、C两项的区别在于时态。根据主语The last half of the nineteenth century可知，C项正确。故本题选C。句意：在十九世纪后期，旅游交通工具日益改进。
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