In 1620, about half the USA forests.A．was coveredB．covered withC．were filled_刷题宝

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In 1620, about half the USA forests.

A．was covered	B．covered with
C．were filled with	D．was covered with

上一题下一题 0.65难度单项选择更新时间:2018-03-21 07:01:39

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