单项选择题

A．He will only be available in the afternoon.
B．It’’s not his office hour.
C．He doesn’’t have time right now.
D．He is too tired after class.
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单项选择题
To be the competent citizens of tomorrow, people should_____.
A．try to lay a solid foundation in computer science
B．be aware of how the things that they use do what they do
C．learn to use a computer by acquiring a certain set of skills
D．understand that programming a computer is more essential than repairing a car
单项选择题
A．Get a ride home with Nancy.B．Find a place to live.C．Go to the store before it closes.D．Carry his groceries home.
A．Get a ride home with Nancy.
B．Find a place to live.
C．Go to the store before it closes.
D．Carry his groceries home.
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