单项选择题

We're happy to report that business is booming this year．

A．risky
B．successful
C．failing
D．open
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单项选择题
She gave up her job and started writing poetry．
A．abandoned
B．lost
C．took
D．created
单项选择题
In the process，the light energy converts to heat energy．
A．reduces
B．changes
C．leaves
D．drops
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