单项选择题

The increasing global warming will have a devastating effect on some coastal areas, or ______ many scientists have warned.

A．so
B．it
C．thus
D．that
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单项选择题
Although his many examples were all right, the remainder ______ not quite exact.
A．is
B．was
C．are
D．were
单项选择题
They hoped ______ them.
A．us to go and join
B．that we would go and join
C．for us to go and join
D．our going and joining
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