单项选择题

Since the Second World War, most urban growth in the United States has occurred ______ of existing metropolitan areas.

A．on the outskirts
B．on the outskirt
C．on outskirts
D．on outskirt
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Andrew, my mother's elder brother, will not be at the family party, ______ to the family's disappointment.
A．more
B．much
C．too much
D．much more
单项选择题
The Chinese government is determined to go ______ the established policy of developing agriculture.
A．after
B．on
C．ahead
D．by
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