单项选择题

What is _________man's ability now is to design a robot that can respond independently to a changing world.

A．beyond
B．beside
C．past
D．over
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单项选择题
The head of the Foreign Affair Office is _________in six different languages and is highly regarded for his talent in communication.
A．fluid
B．smooth
C．fluent
D．flowing
单项选择题
Children must learn just a few basic rules - being safe, being _________to others, and being responsible to themselves.
A．thoughtful
B．careful
C．considerable
D．considerate
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