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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I wish I longer this morning, but I had to get up and come to class.
A．could have slept
B．slept
C．might have slept
D．have slept
单项选择题
The water of the Great Salt Lake is seawater.
A．saltier than that of
B．as salty as that of
C．saltier than
D．so sally as
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