阅读下文，回答后面的问题

    掩映在绿树丛中的港督府于1885年建成，在以后的近一个半世纪中，包括彭定康在内的许多港督曾对其进行过大规模改建、扩建和装修。随着末代港督的离去，这座古典风格的白色建筑成为历史的陈迹。

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限一词;

2）.只允许修改10处，多者（从第11处起）不计分。

    I once bought the beautiful bracelet from a store and felt excited when I tried it on. Sadly, I was soon disappointed at that my naughty kids broke it. But instead of just feel sad, I chose to repair it myself.

    To my greatly surprise, it didn't take a long time to do it. As time went by, I found that I was not happy with just repairing my breaking bracelets. I started making new bracelets out the materials from my old one. Later on, I  begin to design on my own

    Then I made my first deal. Back in 2013, I posted my bracelets on WeChat for the first time and several friends said that they wanted it. That was just the start. With much materials at hand, I made my designs into reality.

①a²﹣b²；②a（a﹣b）+b（a﹣b）；③（a+b）（a﹣b）； ④（a﹣b）²．

其中正确的表示方法有（   ）

下列关于四大地理区域的说法，正确的是（　　）

胡适在1923年给友人的信中写道“25年来，只有三个杂志可代表三个时代，可以说创造了三个新时代：一是《时务报》，一是《新民丛报》，一是《新青年》。”其中《新青年》所创造的“新时代”指的是（   ）