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--Life ____   be very hard for people living in the north of Canada as it is very 
cold there in winter.
—Yes, the weather there _____   be as low as 60℃ below zero.
A.must;canB.shall;mustC.will;should D.hasto;can
A

试题分析:考察情态动词  can:可用于肯定过推测  must:十分确定的推测  have to : 不得不,由外界原因引起  will: 构成将来时 should:表示允诺,义务等意  shall:可用于将来时,主语为一人称
句意为:--由于加拿大冬天的天气十分寒冷,所以对于居住在加拿大南部的人来说,生活一定是异常的不容易。  ---你说的对 ,那儿的天气有时可能会低到零下60度。 根据句意可知:A选项为最佳选项
考点:考察情态动词 
点评:情态动词就是表示说话者对事情的一种看法,也就是一种语气。情态动词的用法一直是命题者常设置的考点和重点,平时要加强记忆。值的注意的是,中学阶段的情态动词常考额有13个,can-could may-might should-ought to had better will-would   need  have to .考生应注意对这13个情态动词的用法多总结,多运用。
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