问题补充：
If you are not satisfied with the price, we can still discuss it.
A. being offered
B. to offer
C. offering
D. offered
答案：
A. being offered
B. to offer
C. offering
(答案→)D. offered
解析：考查过去分词作定语。句意：如果你对提供的价格不满意，我们仍然可以商量。价格应是被给出的，所以用过去分词offered作定语。
