阅读短文，从方框中选择恰当的词语并用其适当形式填空，使短文完整、通顺。每个限用一次。

choose，think of, quiet，bring，like，idea， it，make，instead，plant

    Linda and Laura were very excited because it would be their mother's birthday next Monday. Their mother loved ____and she knew a lot about them. On Thursday, the two girls pretended (假装) that they were going out to buy eggs and bread with their father. ____they went to the plant store where their mother often went. With their father's help, they ____a plant with beautiful flowers. They were sure their mother would like ____.
    When they got home，their mother was busy in the kitchen, so they ____ carried the plant to their room. They wondered where they could put it because they wanted to give their mother a surprise on Monday. They looked around the room carefully. Finally, the two young girls had a(n) ____. They put the plant in a big box and ____it to the top of the bookcase. After it was done, they were very happy.
However, no one ____watering the plant over the next few days. They just treated (对待) the plant ____any other gift. When their mother's birthday came, they opened the box and found a dead(枯萎的) plant with dry flowers, but it still ____their mother happy.

 下列有关金属的叙述，正确的是（　　）

阅读下文，回答相关问题。

                                                                                                   鲁施氏与孟氏
      ①鲁施氏有二子，其一好学，其一好兵。好学者以术干①齐侯；齐侯纳之，以为诸公子之傅。好兵者之楚，以法干楚王；王说之，以为军正②。禄富其家，爵荣其亲。
      ②施氏之邻人孟氏，同有二子，所业亦同，而窘于贫。羡施氏之有，因从请进趋之方。二子以实告孟氏。孟氏之一子之秦，以术干秦王。秦王曰：“当今诸侯力争，所务兵食而已。若用仁义治吾国，是灭亡之道。”遂宫而放之。其一子之卫，以法干卫侯。卫侯曰：‘吾弱国也，而摄③乎大国之间。大国吾事之，小国吾抚之，是求安之道。若赖兵权，灭亡可待矣。若全而归之，适于他国，为吾之患不轻矣。”遂刖④之，而还诸鲁。
      ③既反，孟氏之父子叩胸而让施氏。施氏曰：“凡得时者昌，失时者亡。子道与吾同，而功与吾异，失时者也，非行之谬也。
     【注】①干：谒见。②军正：军中的执法官。③摄：夹处，夹迫。④刖（yuè）：古代刑名，即砍掉双脚

阅读下列材料，回答问题。

材料一：忆昔开元全盛日，小邑犹藏万家宝。稻米流脂粟米白，公私仓廪俱丰实。九州道路无豺狼，远行不劳吉日出。

材料二：太宗皇帝真长策，赚的英雄尽白头。

请同学们思考回答：

如图，AD是△ABC的角平分线，DF⊥AB，垂足为F，DE=DG，△ADG和△AED的面积分别为50和39，则△EDF的面积为____．