【小题1】在过去的十年里中国发生了巨大的变化。
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【小题2】那个地铁自从5年前就已经投入使用了。
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【小题3】这个戏院是上个世纪建造的，是吗？
【小题4】这部有意义的电影已经结束两个半小时了。
【小题5】这本电子词典能帮助我不时测试我的英语语法和词汇知识.
Great changes have taken place in China in the past ten years./There have been great changes in China over the past ten years. / China has changed a lot during the past ten years.
网友回答
(答案→)Great changes have taken place in China in the past ten years./There have been great changes in China over the past ten years. / China has changed a lot during the past ten years.
解析：
【小题1】在过去的十年里in/during the past ten years和现在完成时连用，taken place.发生，不能用被动式
【小题2】自从5年前 since five years ago.和现在完成时连用，开始使用in service/use
【小题3】考查被动和反意问句：This theatre was built 这个戏院被建成是在上个世纪，用过去时的被动，反意问句是前肯后否：wasn’t it ?
【小题4】两个半小时了for two and a half hours 和现在完成时连用，这部有意义的电影This meaningful film，结束： has been over.用表示状态的副词over，
【小题5】这本电子词典This e-dictionary ，帮某人做 help sb do，测试我的英语语法和词汇知识test my English knowledge of grammar and vocabulary， 不时from time to time.