单项选择题


A．which
B．that
C．what
D．when
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单项选择题
A．availableB．attainableC．achievableD．amenable
A．available
B．attainable
C．achievable
D．amenable
单项选择题
A．looking forB．looking intoC．looking afterD．looking over
A．looking for
B．looking into
C．looking after
D．looking over
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