题目内容
32. Tens of thousands of trees _____ in the area in the past few years.
A. have been planted B. were planted C. have planted D. had planted
A

练习册系列答案
相关题目
题目内容
32. Tens of thousands of trees _____ in the area in the past few years.
A. have been planted B. were planted C. have planted D. had planted
A