单项选择题

A．They have no feathers.
B．They are used for swimming.
C．They differ on males and females.
D．They are present only on certain species.
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单项选择题
A．He’s late for social occasions but not for work.B．He’s a quiet person but likes to make grand entrances.C．He expects others to be on time but is usually late himself.D．He loses pay for being late to work but doesn’t seem to mind.
A．He’s late for social occasions but not for work.
B．He’s a quiet person but likes to make grand entrances.
C．He expects others to be on time but is usually late himself.
D．He loses pay for being late to work but doesn’t seem to mind.
单项选择题
A．She finished packing a half hour ago.B．The man should get ready quickly.C．She’ll meet the man at the airport.D．The man doesn’t like to travel.
A．She finished packing a half hour ago.
B．The man should get ready quickly.
C．She’ll meet the man at the airport.
D．The man doesn’t like to travel.
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