单项选择题


When did the National Park Service begin

A． In the early 1800’s.
B． In the late 1800’s.
C． In the 1700’s.
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单项选择题
The young woman felt ______ when she found that the old woman never said a word.
A．curious
B．worried
C．angry
D．frightened
单项选择题
What had happened to the man
A． He had been burnt.
B． He had been wounded.
C． He broke his legs.
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