单项选择题

According to the passage, when you get a wrong number in making a long-distance call, you should（）.

A．check your number and call again
B．tell the operator what has happened
C．Ask the operator to put you through
D．Ask the operator what has happened

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单项选择题
The word scarcity in the last paragraph may most probably mean（）.

A．lack
B．mistake
C．fun
D．similarity
填空题
A．sight B．apply C．give D．item
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