单项选择题

The （） of the Mississippi River is located more than two hundred miles from its mouth.

A．source
B．beginning
C．resource
D．origin

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He ran all the way home and arrived （） breath.

A．without
B．lack of
C．beyond
D．out of
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Did you buy the TV you wantedNo, I didn't, but now I wish I （） it.

A．bought
B．had bought
C．have bought
D．buy
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