The Sky Is Blue!
课程：英语每日故事（初级）1-31 · 英文练习
练习内容
My uncle sends me a picture. It's a picture of a blue sky and white clouds.\n"I am so happy to see the blue sky!" says my uncle.\nI wonder why. "Isn't the sky always blue?"\n"No," he says. "The sky in
课程：英语每日故事（初级）1-31 · 英文练习
My uncle sends me a picture. It's a picture of a blue sky and white clouds.\n"I am so happy to see the blue sky!" says my uncle.\nI wonder why. "Isn't the sky always blue?"\n"No," he says. "The sky in