单项选择题

My boss insists on seeing everything in () before he makes a decision.

A．black and blue
B．red and blue
C．black and white
D．green and yellow

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单项选择题
Our readers are comfortable with our clear, ()words that inform and entertain them.

A．conventional
B．concise
C．creative
D．crucial
单项选择题
The accommodation was cheap, but the food was very ().

A．high
B．costly
C．dear
D．overpaid
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