---You bought the car ten years ago?-Yesit’s old it still runs well.A. BecauseB. Si

问题补充：

---You bought the car ten years ago?

---Yes. it’s old, it still runs well.

A. Because

B. Since

C. Although

D. But

答案：

A. Because

B. Since

(答案→)C. Although

D. But

解析：Because因为；Since由于，自从……以来；Although虽然，尽管；But但是；句意：你在十年前买的这辆车？——是的，尽管它很旧了，但是开起来仍旧很不错。结合语境可知选C。