单选题 At the conference yesterday, our differences were further _____. The next step is to work out a solution acceptable to both sides.无

【正确答案】 A

【答案解析】句意：昨日会议上，我们的分歧进一步缩小。下一步计划就是找到双方都接受的解决办法。 narrow down缩小。 cool down平静下来。 drive home使人理解。 bring about引起。因此，本题正确答案选A。