现阶段，下岗职工基本生活保障制度、失业保险制度、城乡最低生活保障制度、养老保险、医疗保险制度构成了中国特色的社会保障制度。这说明（    ）

①我国的社会保障制度体现了正义，正义因制度而有保证      ②当正义与制度融为一体时，公平与和谐才有可能实现

③正义的制度是为处于社会最不利地位的群体制定的              ④正义的制度保障社会成员的基本生存权利，推动社会的进步

“一猪生九子，连母十个样”，这句话描述了生物的遗传规律。            

C）根据对话内容，从下面方框中选择适当的单词或短语填空，使对话内容完整正确。

Tom： I give up! I____ can't learn English!
Amy:  Why do you say that? I think you are making a lot of____ .
Tom:  No, I'm not. I try and try and I still can't speak it very well.
Amy:  Learning any language ____  a lot of effort. Please don't give up.
Tom:  Amy, I know you always____ English. Can you offer me some valuable advice?
Amy:  Listening to English tapes and watching English movies may be helpful. But always remember your English will improve if you are really____ it.
Tom:  Good idea. I will try to love English.

—________ He always communicates with our parents in his free time．

我会把下面词语分成三类

杨树    小刀   松树    锦鸡    橡皮   毛笔   燕子    直尺    柳树     百灵

①____、____、____

②____、____、____

③____、____、____