单项选择题

A．Medical research.
B．Ballpoint pens.
C．Children’s games.
D．Jewelry settings.
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单项选择题
A．He ran a village shop.B．He worked on a farm.C．He worked in an advertising agency.D．He was a gardener.
A．He ran a village shop.
B．He worked on a farm.
C．He worked in an advertising agency.
D．He was a gardener.
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