题目内容
3．Don't you think _ necessary for friends to trust each other？（ ）| A． | one | B． | that | C． | those | D． | it |
分析 你不认为朋友之间相互信任是有必要的吗？
解答 答案D 根据句子的真正宾语是to trust each other，可知空白处所需代词代替to trust each other，在句子中形式宾语，one和that（those）没有这种用法，it做代词时可做形式宾语，故答案选D．
点评 本题考查不同代词的不同用法：one做代词时代替上文提到过的同一事物；that（those）做代词时代替时间或空间上较远的事物；it做代词时可做形式宾语和形式主语．
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