单项选择题

This test is rather difficult, ______ it is not beyond the reach of the students.

A．×
B．so
C．for
D．but
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单项选择题
—Is it a recorded football match —No, it is ______ football match.
A．a lively
B．a living
C．an alive
D．a live
单项选择题
Diffcult as the task was, he ______ it in time.
A．worked
B．did
C．worked on
D．finished
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