1 . Two of the largest active v ________ are erupting at the same time in Hawaii, US, which according to the experts is rarely seen. (根据首字母单词拼写)

2 . Built for the 2008 Beijing Olympics, Beijing National S________, or Bird’s Nest, is a truly stunning piece of architecture. (根据首字母单词拼写)

3 . Her ________（提升，晋升）to Sales Manager was not surprising at all since she has managed to bring in millions of dollars of sales income. （根据汉语提示单词拼写）

4 . Sometimes c________ will come up, but never for very long. (n. serious disagreement or argument about something important) （根据首字母单词拼写）

5 . The p________to build a new high-speed railway was rejected due to the lack of money and technology. （根据首字母单词拼写）

6 . Both the l________ and tourists like to use shared bikes because bike-sharing is a cheap and easy way to save energy, reduce air and noise pollution, and enjoy the benefits of exercise in cities.(当地人)（根据中英文提示填空）