根据上下文意思，用所给单词的恰当形式完成下列短文。

        Toby came back from England yesterday. Two months ago, Toby and his classmate____(enter) a robot competition for his school. More than one hundred  ____(school) around the country joined in it, and Toby's school____(win) the first prize. As captain of his team, Toby felt very proud. He said it was a wonderful experience. But the prize sounded more fantastic. It was a holiday in England. “When the plane took off, I still  ____(do) think it was real. It was like a dream." Toby said. Someone told Toby that the first prize of the robot competition next time____(be) a holiday in America. Toby hoped to enter it then.

说明垂直绿化在城市环境中的主要作用。

二战后，西欧和日本经济发展的共同原因有（    ）

①美国的扶持、援助 ②利用先进的科学技术成果 ③推行非军事化政策 ④加强联合，建立经济共同体

读《珍珠泉》，把下面的句子补充完整。

  水面和谭底，____的光斑和____的光斑____着；水泡____的，____的光，____的光，____的光……多像一串一串的珍珠啊！