题目内容
In the past twenty years, we ________ millions of trees on the mountains.A. will plant B. have planted C. are planted D. are planting
答案:B
提示:
提示:
| 完成时态表示已经完成的动作。
|
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题目内容
In the past twenty years, we ________ millions of trees on the mountains.A. will plant B. have planted C. are planted D. are planting
| 完成时态表示已经完成的动作。
|