单项选择题

A million years ______ but a brief span in the history of our planet.

A．have been
B．are
C．is
D．has been
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单项选择题
She was teaching me ______ you would teach a younger child to speak the language.
A．the way
B．in the-way
C．a way
D．to the way
单项选择题
His manner was so pleasant that Bolla felt at ______ with him at once.
A．peace
B．large
C．ease
D．best
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