一道关于时态的英语选择题

Two new schools _____ (build) during the last ten years.

during the last ten years 用什么时态

第1个回答  2008-11-15
Two new schools has been built (build) during the last ten years.

during the last ten years 用现在完成时态
我是从事英语的,不明再问啦。
第2个回答  2008-11-15
现在完成时
have been built本回答被提问者采纳
第3个回答  2008-11-15
在过去已经完成 故填 had been built
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