单项选择题


A．and
B．but
C．unless
D．since
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单项选择题
A．suitableB．appropriateC．capableD．able
A．suitable
B．appropriate
C．capable
D．able
单项选择题
A．ConsequentlyB．MoreoverC．UnexpectedlyD．However
A．Consequently
B．Moreover
C．Unexpectedly
D．However
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