题目内容
12．In Switzerland，______ is very important to be on time．（ ）| A． | it | B． | this | C． | that | D． | he |
分析 在瑞士，守时是非常重要的．
解答 答案：A．it is+adj．+to do something 译为"做某事是…的"．it 是形式主语，真正的主语是后面的to do 不定式．this 指示代词，这个，指代时间上或空间上比较近的事物；that 指示代词，那个，代指时间上或空间上较远的事物； he 他，人称代词主格，放于句首做主语．此题强调it 做形式主语，代指后面守时这件事，故选A．
点评 此题考查指示代词的用法，在熟知所提供词意及用法的基础上，结合句意便可得出正确答案．
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