单项选择题

The world's oil supply

A．haven been gradually being exhausted
B．is being gradually exhausted
C．is gradually exhausted
D．has gradually exhausted
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Excuse me, but it is time to have your temperature______.
A．taking
B．took
C．taken
D．take
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I had no ______of who I was or what I was going to be.
A．mind
B．idea
C．think
D．thought
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