单项选择题

A．were
B．are
C．used
D．had been
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单项选择题
Who volunteered to clean up the oil
A．Businessmen, storekeepers, students and others.
B．Storekeepers, reporters, businessmen, and others.
C．Farmers, scientists, teachers and others.
D．Scientists, technicians, businessmen and others.
填空题
Run a drama workshop．
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