The next morning the bushes and maple trees    1    their windows were red， gold and orange， and there was frost on the ground，    2    （confirm）that fall had arrived in Canada.

Around noon they arrived in Toronto， the biggest and     3    （much） wealthy city in Canada. They were not leaving for Montreal    4    later， so they went on a tour of the city. They went up the tall CN tower and looked across the lake. In    5    distance， they could see the    6    （mist） cloud that rose from the great Niagara Falls， which    7    （be） on the south side of the lake. The water flows into the Niagara river and over the falls on    8    （it） way to the sea.

They saw the    9    （cover） stadium， home of several famous basketball teams. As they walked north from the harbour area， Li Daiyu said， "Lin Fei， one of my mother's old schoolmates，    10    （live） here. I should phone her from a telephone booth. "