英语四人food四人情景对话

senario: My sister and I are going to throw a party for my brother's birthday. We went to the market and started shopping, then we spotted a shop with two shopkeepers...
(A,B是你和姐姐C,D是小贩)

A: Hey sis! Come and take a look!
B: Yes? Oh, these are nice vegetables. I suppose you want them for the salad?
A: Of course! They'd make a great fruit and vegetable salad. How much is the apples?
C：1 for 1 dollar.
B: That's a bit expensive...what about the tomatos?
D: we go by the kilos. one kilogram for 3 dollars.
B: And the spinach?
C: One packet for 5 dollars.
A: Why not we take 10 apples, two packets of spinach and one kilogram of tomato? I bought the bananas yesterday.
B: Alright. That will be...23 dollars. That's more than our budget of 20 dollars.
A: Can you give a discount? Will 18 dollars do?
C: No. how about 21.5 dollars?
B: 19 dollars and no more.
D: 20 dollars and you take the lot.
A: D