One-third of the area covered with green trees. About seventy percent of the trees been——青夏教育精英家教网—

摘要： One-third of the area covered with green trees. About seventy percent of the trees been planted. A. are; have B. is; has C. is; have D. are; has

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One-third of the area _____ covered with green trees. About seventy percent of the trees _____ been planted.

A. are; have B. is; has 　 C. is; have 　 D. are; has

One?third of the area__________covered with green trees.About seventy percent of the trees

__________been planted.?

A.are; have B.is; has C.is; have D.are; has

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