单项选择题

A．He had to work over time.
B．He was held up by the traffic jam.
C．The oil was running out,
D．An accident.
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单项选择题
A．A little less than six hundred billion dollars.B．Six hundred billion dollars.C．More than six hundred billion dollars.D．About six hundred billion dollars.
A．A little less than six hundred billion dollars.
B．Six hundred billion dollars.
C．More than six hundred billion dollars.
D．About six hundred billion dollars.
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