单项选择题

______ the temperature falling so rapidly, we couldn't go on with the experiment.

A．Since
B．For
C．As
D．With
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单项选择题
Floods cause billions of dollars worth of property damage ______.
A．relatively
B．actually
C．annually
D．comparatively
单项选择题
Do you know her ______I remember______
A．somewhere having seen her
B．having somewhere seen her
C．having seen her somewhere
D．having seen somewhere her
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