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题目
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Mountain climbing _______ be tiring and many people feel sick as the atmosphere gets thinner.
A.needB.canC.mustD.would

答案
B
解析

试题分析:这里表示“推测”意思是可能,故用can。
点评:情态动词本身不能单独作谓语,只能和其它动词构成谓语,表达特殊的功能和意义。在学习情态动词时主要从其语法功能和特殊含义的归纳上下功夫,如情态动词表示能力、情感态度和表示推测三种意义的用法差别等。
核心考点
试题【Mountain climbing _______ be tiring and many people feel sick as the atmosphere 】;主要考察你对虚拟语气等知识点的理解。[详细]
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