单项选择题

They are bending with great ________ over the computer.

A．attempt
B．concentration
C．tolerance
D．devotion
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单项选择题
You'd better add them up. I'm not good at ________.
A．figures
B．characters
C．summaries
D．counters
单项选择题
Would you send this message to Prof. Wilson Sure, ________ him about something else in any case, so there won’t be any bother at all.
A．I'll see
B．I see
C．I'll be seeing
D．I may see
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