题目内容
13．It's dangerous to cross the street when the traffic lights are red．分析 红灯亮时过马路是危险的．
解答 答案：dangerous 考查首字母填空．根据句意红灯亮时过马路是危险的．故用形容词 dangerous
点评 考查首字母填空．准确地翻译句子、理解句子，然后根据句意及提示用合适的词的合适形式完成句子，使句意更通顺．
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