Ⅰ. 将下列句子合并成含有定语从句的复合句。
1. Every year Rio de Janeiro holds a carnival(狂欢节). The 2016 Olympic Games will be held there.
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2. I still remember the day. I came to Beijing on the day.
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3. Who is the man? The man is reading the newspaper over there.
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4. Michael Jackson died on June 25, 2009. His music is still very popular.
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