Great changes_____ in the small city in the last 20 years.A．have taken placeB．to
题型：不详难度：来源：
Great changes_____ in the small city in the last 20 years.| A．have taken place | B．took place | C．had taken place | D．are happening |
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答案
| A |
解析
| 考查时态：时间是in the last 20 years，和现在完成时连用，句意是：在过去的20年里，这个小镇已经发生了巨大的改变。选A。 |
举一反三
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