Tens of thousands of trees _____ in the area in the past few years.A.have been plantedB.were planted

题目简介

Tens of thousands of trees _____ in the area in the past few years.A.have been plantedB.were planted

题目详情


Tens of thousands of trees _____ in the area in the past few years.
A.have been plantedB.were plantedC.have plantedD.had planted
题型:单选题难度:偏易来源:不详

答案

A

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