阅读对话,选择正确答案。
My mother goes shopping at a supermarket today.
A=Assistant(售货员) M=My mother
A: May I help you?
M: Yes, please. I want to buy some vegetables.
A: The potatoes are very fresh(新鲜的)today.
M: I like potatoes, but my son doesn't.
A: How about some tomatoes? They are good for your health(健康).
M: OK. They are my son's favourite. Five tomatoes, please.
A: OK. Your bag, please.
M: Oh, no. I have my shopping bag.