单项选择题


What was Alan doing at that time

A． She was taking a rest.
B． She was preparing for an exam.
C． She was taking an exam.
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单项选择题
Why does the author mention dinosaurs at the end of the passage
A．Because they could only live in the warm climate.
B．Because they once dominated the earth.
C．Because their extinction indicates future disasters.
D．Because dinosaurs and humans never live in the same age.
单项选择题
When the nurse talked to mum she thought mum was a ______.
A．nurse
B．visitor
C．patient
D．cleaner
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