问题
选择题
The unemployment rate in this city ____ from 7％ to 6％ in the past two years.
A．has fallen
B．had fallen
C．is falling
D．was falling
答案
答案：A
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The unemployment rate in this city ____ from 7％ to 6％ in the past two years.
A．has fallen
B．had fallen
C．is falling
D．was falling
答案：A