2015年5月18日华中旅游博览会在汉召开．开幕式上用到甲、乙、丙三种造型的花束，甲种花束由3朵红花、2朵黄花和1朵紫花搭配而成，乙种花束由2朵红花和2朵黄花搭配而成，丙种花束由2朵红花、1朵黄花和1朵紫花搭配而成．这些花束一共用了580朵红花，150朵紫花，则黄花一共用了____ 朵．

长方体或者正方体____叫做它的表面积。

-- ___________. But you have to return it to me this afternoon.

我国每年春节联欢晚会，都有不少少数民族的歌舞节目，既丰富了春晚内容，又让人们感受到少数民族的风采。这样做有利于（    ）

①贯彻民族团结原则②促进各民族经济发展③各民族文化共同繁荣④各民族融为一体

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。

    When I was young, my mother owned a store, in that she also sold magazines and books. I love to stay in the store, reading everything I found. It failed to help develop my ability to judge a good book, and it helped improve my reading skills. Then my mother began to focus on quality instead quantity. She bought books I wouldn't find them in her store. Later, as my interest at theater began, I spent most of time read Shakespeare and George Bernard Shaw, to name the few. Anyway, good storytelling opened the window to different worlds I otherwise would have never entered. In additions, when I lived through a difficultly period books became advisers.