为控制人口数量和提高人口素质，我国已把计划生育列为一项基本国策，其具体要求是晚婚、晚育，____和____。
春秋战国时期，我国农业出现了一次大变革，农业的深耕细作，使生产力得到了大发展。这些变化的主要原因是（ ）
用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）。
hair, never, old, newspaper, play, but, can't, get, glasses, build
My grandfather is seventy years old, ____ he is still very healthy. He is tall and of medium ____ . He has short straight white ____ He likes reading. Every morning he ____ up very early and then reads morning ____ . When he reads, he always wears ____ . He also likes ____ chess, too. He always plays chess with his ____ friends. He ____ plays chess with me. Why? Because I ____ play chess.
照样子，完成句子。
例：大象和棕熊立刻行动起来。棕熊刨坑，大象栽树，棕熊培土，大象浇水。
同学们在操场上活动。小松____，小力____，小玉____，小明____。
