—Yes, when we cross the street we must wait ________ the traffic lights turn green.

《简·爱》中贯穿的两个比喻是什么？

纵观中国历史，历朝历代中央政府都采取措施加强对地方的管理。阅读材料，结合所学知识，回答下列问题。

材料一：罢兵西归……封诸侯，班赐宗彝……于是封功臣谋士，而师尚父为首封，封尚父于营丘，曰齐。

材料二：齐人淳于越进谏曰：“臣闻之，殷周之王千余岁，封子弟功臣自为支辅。今陛下有海内，而子弟为匹夫，卒有田常、六卿之患，臣无辅弼，何以相救哉？事不师古而能长久者，非所闻也。今青臣等又面谀以重陛下过，非忠臣也。”

廷尉李斯议曰：“周文武所封子弟同姓甚众，然后属疏远，相攻击如仇雠，诸侯更相诛伐，周天子弗能禁止。今海内赖陛下神灵一统，皆为郡县，诸子功臣以公赋税重赏赐之，甚足易制。天下无异意，则安宁之术也。置诸侯不便。”

请修改下面的短文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词；

2）只允许修改10处，多者（从第11处起）不计分。

Dear Chris,

    Here are good news for you. A famous Opera, Butterfly Lovers, will put on this Saturday. Butterfly Lovers is one of the most tradition love story. I know you show great interest in Chinese culture, especially for the local operas. I hope this opportunity will not only make you happy, but also satisfies your interest in Chinese opera. If you can come, I suggest have a look at the museum near the theater after watch the opera. There, I believe, I can know the history of many Chinese operas, which can increase your knowledges about Chinese traditional operas. I'm looking forward to receiving your reply.