Some amazing people _______ our world for the better in the past 100 years.A．cha
题型：不详难度：来源：
Some amazing people _______ our world for the better in the past 100 years.| A．change | B．are changing | C．have changed | D．had changed |
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答案
| C |
解析
试题分析：表示过去的某一动作或行为一直持续到现在，用现在完成时，故选C。
点评：英语中的时态主要由动词的形式决定，因此在学习英语时态时，要注意分析动词形式及具体语境，想象在那个特定的时间动作所发生的背景，这个动作是经常性动作、一般性动作、进行性动作、完成性动作还是将要发生的动作。 |
举一反三
I feel so excited! At this time tomorrow, I ________ by camel with local guides in Northern Africa. | A．travel | B．travelled | C．will be travelling | D．have travelled |
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You have no chance of getting the position. I’m afraid you _____ your time if you apply for it.| A．waste | B．have wasted | C．have been wasting | D．will be wasting |
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— Are these seats available?
— Sorry, sir. The seats _____.| A．have reserved | B．are reserved | C．reserved | D．are reserving |
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What’s the time? My watch _______.| A．is being repaired | B．is to repair | | C．has been repaired | D．has repaired |
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According a recent survey, if the factory closes, a lot of people _______ their jobs.| A．are going to lose | B．will lose | C．may lose | D．are about to lose |
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