【单选题】【消耗次数：1】
Thirty dollars ___ too expensive.
①
are
②
is
③
were
④
be
参考答案：
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相关题目
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答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”Automobiles were too expensive that only rich people could afford them.
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