We had planted three thousand trees the end of March. [ ] A.by B.in C.at D.to
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![We had planted three thousand trees the end of March. [ ] A.by B.in C.at D.to](/pic/43_983676.jpg)
We had planted three thousand trees ________ the end of March.
[]A.by
B.in
C.at
D.to
试题答案
答案:A
解析:根据题意“到三月底,我们已经栽了3000棵树”。根据题干中的过去完成时,应判断用短语by the end of。 |