The Russian rocket designer has died. For many years, he ______ as an important
题型：不详难度：来源：
The Russian rocket designer has died. For many years, he ______ as an important assistant to the father of Soviet space program. | A．serves | B．was serving | C．served | D．has served |
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答案
| C |
解析
试题分析：考查时态。本题使用一般过去时，描述过去所发生的动作，本句中没有反应出对现在的影响也没有延续到现在，故不要使用现在完成时。句意：俄罗斯的火箭设计师去世了。很多年来，他都充当俄罗斯的太空计划之父的角色。故C正确。
点评：现在完成时表示过去发生的事情对现在的影响，或者表示过去发生的事情持续到现在。而一般过去时则是描述过去所发生的事情。 |
举一反三
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