The last half of the nineteenth century _________ the steady improvement in the

游客2023-11-21  25

问题 The last half of the nineteenth century _________ the steady improvement in the means of travel.

选项 A、has witnessed
B、witnessed
C、is witnessed
D、has been witnessed

答案 B

解析 动词“witness”的主语可以是表示时间或地点的名词词组,句子的谓语动词用主动语态。例如:1.This field has witnessed a battle.
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