—Why do you call him Mr．Knowledgeable?— Because he knows almost everything we want to know．
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推荐题目
One of the most interesting places in Hangzhou ________ are often visited by foreigners is the West Lake.
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------Look，it’s the most beautiful park___________ I’ve ever visited before.-----Really？How I wish to go to see it for myself!.
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A Wechat (微信) is an invention __________ can help people talk to friends, share photo, ideas and feelings freely.
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