语法与词汇 2.Although the company still has some difficulties, the director's report ended on an optimistic
【正确答案】 A
【答案解析】on a…note是固定搭配。意为“以一种……的调子，带上一种……口气”，如：We have opened our discussion on a friendly note．我们在友好的气氛中开始讨论。