打开窗子透透新鲜空气。应当有礼貌地和老人交谈。乘出租车从我们学校到市中心只需20分钟。地球上的污染正变得越来越来严重。虽然我们尽了最人的努力，但还是输了比赛。
Don't get on the bus before （清点）the total number of your team members.
We need to increase our （知识）of the history of the Communist Party of China.
In China, （小学的）education is given﹣to pupils between ages of 6 and 12.
Suzhou Museum （位于）to the north of the Lion Forest Garden.
Tomorrow is Father's Day.Let's get prepared （今晚）to give Dad a big surprise.
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