4．
阅读对话，判断正误
Tom: Jack, is it warm in spring in Shanghai?
Jack: Yes, it is.
Tom: What about summer there?
Jack: It's very hot. I like swimming in summer.
Tom: How's the weather in fall there?
Jack: It's cool and sunny. I can play outside. Which season in
Harbin do you like best?
Tom: I like winter best. Because it's very cold. I can skate.
