单项选择题

John is very______. If he promises to do something he’ll do it.

A．independent
B．confident
C．reliable
D．flexible
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单项选择题
Over the past decades, sea ice______in the Arctic as a result of global warming.
A．had decreased
B．more than
C．attach
D．apply
单项选择题
There is a great deal of evidence______that music activities engage different parts of the brain.
A．indicate
B．indicating
C．to indicate
D．to be indicating
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