题目内容
______ is the first writing language in United Nations. More than 200 million people in the world speak it.
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From the 16th century, _______became the destination of the ancient Chinese Silk Road.
Between the various peoples of Pakistan, ____is the main language of communication.
In_____, the English word “no” at the end of a sentence is used to indicate a tag question.
Direct eye contact is not that important for________.
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