单项选择题

The Betty Schools have a history of ______.

A．half a century
B．about a quarter of a century
C．a whole century
D．over three quarters of a century
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单项选择题
How many years of her life did Marta Betty devote to working for children
A．40 years.
B．76 years.
C．29 years.
D．36 years.
单项选择题
The underlined word aroused in the passage is closest in meaning to ______.
A．caused
B．changed
C．proved
D．puzzled
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