从方框里选择合适的句子，补全对话。

A：Where is the supermarket?

B：It's near the bus station.

A：Thank you.

B：

(In the supermarket.)

A：Look，Amy.

C：Oh, it's a toy car.

A：

C：It's twenty­fiveyuan.

A：Ok. Let's buy it.

A. Go straight on. B. How much is it? C. Excuse me. D. What's this? E. You're welcome.