为促进水资源的合理配置和节约利用，北京市政府拟于近期调整水价，并公布两套阶梯水价调整方案，征求社会意见。作为北京市民，你认为下列参与方式恰当的有（    ）

①行使表达权，登录市政府网站表明自己对水价调整的态度

②行使决策权，通过社情民意反映制度向有关部门提出意见

③行使监督权，对水价调整方案的不合理之处提出批评建议

④参与民主管理，要求召开居民会议讨论阶梯水价调整事宜

    Hello, everyone! I am your1 today. First, I'd like to 2 you something about London before we3London is a very big city of England. The people here are friendly. They are always 4 to tell visitors something about the city.

    London is a busy place. People_5hard. They are very 6 all the time (一直). London is also a very beautiful city. It has a lot of parks and gardens (花园). When you are in London, you can7the British Museum. It can tell you a lot of 8stories. You may also visit9 place. It is the River Thames. It's long and wide. There are many boats on the river.

    May you have a good10！We will get to London in two hours. Now let's have a guessing game.