阅读对话或短文判断正误
Andy: What a sunny day! Let's go to the farm.
Tom: OK. Let's go!
Sam: It's a little cold. Put on your sweaters. And take our football. We can play football there.
Andy and Tom: OK.
(At the farm)
Tom: Look! What are these?
Andy: They are cows. They are black and white.
Sam: Are those potatoes?
Tom: No! They are tomatoes.
Sam: I want to eat them. How much are they?
Farmer: They are 5 yuan. You can buy some.
Andy, Sam and Tom: They are good. We'll take them.