- Sam, you don’t work hard at geography. - My dad says that the world is changing every day, I——青夏教育精英家教网—

摘要： - Sam, you don’t work hard at geography. - My dad says that the world is changing every day, I decide to wait until it stops. A. because B. while C. if D. so

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— Sam, you don’t work hard at geography.
— My dad says that the world is changing every day, I decide to wait until it stops.