单项选择题

Scientists generally agree that the Earth's climate will warm up over the next 50 to 100 years ______ it has warmed in the 20000 years since the Ice Age.

A．as soon as
B．as long as
C．as much as
D．as well as
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单项选择题
Mr. Johnson couldn't shake the ______ that these wounded soldiers were in deep trouble and it was up to him to help them.
A．convention
B．conservation
C．conviction
D．conversion
单项选择题
Fish and chips ______ getting more and more expensive in many places of Britain.
A．are
B．are to
C．is
D．is to
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