对联是中华文化所特有的表达方式，有时也承载着历史的信息。以下是某同学收集的新中国成立以来的给付对联：

对联一：万里河山归人民，五亿群众庆新生

对联二：走计划建设道路，做三大改造先锋

对联三：过年储米十余担，压岁存款上千元

对联四：杂居聚居遵民意，五区人民得自治

请回答：

实验室制取二氧化碳所使用的原料是（   ）

The Los Angeles district attorney on Monday charged Michael Jackson's personal physician, Conrad Murray, ______ involuntary manslaughter in connection with the pop icon's death in June.

写出两个既是中心对称，又是轴对称的图形：____.

根据句意，从方框中选择合适的单词或短语，并用其适当形式完成句子。                      

Lock  pack   realize   on  display   take after

(1)Designs for the new gym will be ____  in the library. 
(2)Jim ____  his father. They are both clever and a bit quiet.
(3)I was waiting for the school bus but it didn't come. Then I ____  it was Saturday.
(4)Beijing is cold this time of year. You need to ____ warm clothes if you go there.
(5)Don't forget to ____  the door if you are the last one to leave the classroom.