根据问题填空：

元素周期律和周期表在化学、物理学、生物学、地球化学等方面都是重要的工具。发现元素周期律并编制出元素周期表的科学家是（    ）

在横线上填上正确的数。

2+9=____，11-9=____，11-2=____

依次填入下列各句横线处的词语，最恰当的一项是（  ）（3分）
①深夜看电视，电视机的音量应尽量小点，以免          别人休息。
②下星期举行一次数学单元测试，             同学们这阶段的学习成绩。
③这些字使整个世界在我面前变得花团锦簇，＿＿＿。

用所给动词的正确形式填空。
    Be sure ____ (go) to this exhibition at the Sunshine Gallery. Ms. Wang ____ (consider) to be one of the best known Chinese photographers in the world today, and some of her most famous photos are in this exhibition. Ms. Wang ____ (get) to Sunshine Town yesterday afternoon. She really____ (have) something for everyone.  There are many great photos of the countryside. Maybe you ____ (see) some of them on TV before.  It's quite different when you see the real photos. Whatever you do, ____ (not miss) this exhibition!