单项选择题

The last half of the 19th century ______ the steady improvement in the means of travel.

A．witnessed
B．has witnessed
C．is witnessed
D．was witnessed
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单项选择题
Outside people were cheering and awaiting the arrival of the new year while inside Harry was lying severely ill in bed feeling thoroughly ______.
A．overflowed
B．wretched
C．compacted
D．compiled
单项选择题
An ______ test is a rough measure of a child's capacity for learning, particularly for learning the kinds of things required at school.
A．proficiency
B．intelligence
C．psychology
D．speed
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