单项选择题

Don’t all speak at once! , please.

A．Each at one time 　
B．One by one time
C．One for each time
D．One at a time
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单项选择题
Family education has a great on children in many ways.
A．result
B．danger
C．disadvantage
D． effect
单项选择题
The prisoner of war wished to be .Ten years later, he free and regained his .
A． free; was set; free
B．freely; was set; freedom
C．free; set; freedom
D．free; was set; freedom
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