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Cangjie create(创造) the first Chinese characters(汉字)?

—More than 4,000 years ago.

A. When were B. How long were

C. When did D. How long did

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Picture the scene: It’s midnight. You’re very hungry after studying for a long time. Then you see a nice pie in the fridge. Do you eat it? It seems that you shouldn’t, for many reasons, including its influence on your studies.

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