单项选择题

The distinguished professor was invited to preside ______ the conference on behalf of the chairman.

A．on
B．in
C．over
D．for
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单项选择题
______ the sun in superstitious awe everywhere in the world.
A．Man has long held
B．Long has held man
C．Has man long held
D．Man has held long
单项选择题
He stole into his room ______ he should awaken his parents.
A．in order that
B．so that
C．with the result that
D．in case
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