将所给的词填入恰当之处，使文章意思完整通顺。

    I'm in a bus. I am traveling in a new city. I'm looking out of the 1 . It's sunny. People are walking 2  the street under the trees. Birds are singing in the trees. Children are 3  their kites. Some girls are watering 4 . Some boys are playing basketball. An old man is taking photos. A group of young people are planting trees. There are lots of 5  buildings in the city. How beautiful this city is! I like this city.