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假设你是Meimei，请根据所给表格内容给你在英国的朋友John写一封信，介绍一下你奶奶过去与现在生活的变化。
| twenty years ago | now |
| a small village didn’t have enough food worked in the fields cooked on a fire didn’t have a television or a radio | a big city lots of food many buses and cars watch TV |
要求：1.语句通顺，条理清晰。2.不少于40个单词。
Dear __________,
Twenty years ago, ____________________________________________________
____________________________________________________________________
____________________________________________________________________
Now, _______________________________________________________________
____________________________________________________________________
____________________________________________________________________
Love,
__________
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
