Next morning, Miki and Cindy took a streetcar to go to the highest tower in the city. Cindy said, "The streetcar is useful for us to go around the city." Miki answered, "I know. We also have streetcars in Hiroshima." "Yes. I remember you took me to some famous places by streetcar." Cindy said.
From the top of the tower, Miki and Cindy saw a lot of high buildings. Cindy said, "Our city is one of the big cities in Canada and a lot of ethnic groups live together here. They have their own towns, for example, Greek Town or Little Italy." Miki remembered a lot of people from different countries on the streetcar. Some people were speaking English and other people were speaking other foreign languages. Cindy said, "I know a good restaurant in Greek Town. Why don't we have lunch there?" Miki said, "That's ①a good idea!" It was exciting for Miki to visit Greek Town.
（注） streetcar 路面電車 tower 塔 ethnic group 民族 Greek Town グリークタウン（ギリシャ系住民が多く住む町） Little Italy リトルイタリー（イタリア系住民が多く住む町）
Why don't we ~? は勧誘の表現（～しましょうよ）です。同じ勧誘の表現として「Let's ~.」「Shall we ~?」「How about ~ing?」の３つも必ず覚えておこう。