单项选择题

A person who deals with the public must be courteous at all times, even when he or she is very tired.

A．forthright
B．polite
C．decisive
D．neat
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单项选择题
Writing is a skill that requires consistent practice.
A．invariable
B．orderly
C．regular
D．customary
单项选择题
What he said was contrariwise to what we expected.
A．ironic
B．innate
C．opposite
D．circumspect
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