【正确答案】 A

【答案解析】accumulate：积累。buildup：建立起。The old teacher has accumulated a lot of teaching experience. 这位老教师积累了丰富的教学经验。We have built up a good reputation. 我们建立起了很好的声誉。make up：编造。She made up a funny story to explain her absence. 她编造了一个滑稽的故事，解释她为什么不来。clear up：澄清。I'd like to clear up two or three points. 我有两三点想澄清一下。