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The United States discovered in 1982 that about one-fifth of its farmland ______
The United States discovered in 1982 that about one-fifth of its farmland ______
游客
2023-10-25
48
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问题
The United States discovered in 1982 that about one-fifth of its farmland ______ topsoil at a rate likely to diminish the soil’s productivity.
选项
A、is losing
B、to be lose
C、was losing
D、being lost
答案
C
解析
过去进行时可表示过去的某个时间动作在进行,根据句意,C正确。
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