在下面一段文字横线处补写恰当的语句，使整段文字语意完整连贯，内容贴切，逻辑严密。每处不超过20个字。

    在古代，____。秦始皇初并天下，“衣服旄旌节旗皆尚黑”；同为汉朝，汉高祖尚黑，汉武帝尚黄，光武帝建立东汉，国色又变成了红色；曹丕取代东汉，颜色尚黄；晋取代了曹魏，颜色尚白；隋尚赤，唐尚黄；五代时期，后梁尚白，后唐尚黄，后晋尚白，后汉尚黑，后周尚青。自从宋代开始，中国人一直崇尚红色，至今已有1000多年历史。新年贴红对联，元宵挂红灯笼，新婚贴红双喜、穿红衣裳，生小孩送红蛋等等，____。

已知命题$P:\forall x\in R,\cos x\le 1$，则（  ）

    11-year-old Jerome is good1running. He usually wins all of the races at Serpentine Primary School in Australia. However, after giving up2 a recent school race, the boy has won hearts of3 people. In the race, the kind boy ran back to walk with his good friend Seth and let him4the finishing line first.

    10-year-old Seth was born with cerebral palsy (脑瘫). Since he moved to the school last year, he5a lot of problems at school. Luckily, Jerome6to help him by the teachers with things like going to the toilet and showing him around. The two boys soon became good friends

    Because of his7Seth has a big head, some students laugh at his appearance. Jerome usually has a word with Tom, asking them 8that. Seth's father can't thank Jerome enough for looking after his son. "He is9 good kid." The two boys' story has spread quickly after Jerome's mother Susan shared it on social media. "These boys are champions10they didn't win," said the proud mother.

2002年世界杯足球赛C组球队有巴西、士耳其、中国、哥斯达黎加四支球队，每两个球队踢一场，一共要踢____ 场．

有学者认为，美国南北战争在1862年下半年出现了一个转折点．一度占优势的南方政府中出现了摇摆州，联邦政府通过内部政治运作，承诺只要在宣言生效前重新加入联邦，便至少在当下不改变原有制度，从而成功争取到至少三个州的和平力量。由此可见“转折点＂指的是（    ）