【题目】Though we lived in the same neighborhood for many years, I had never made
his , let alone known where he worked.
A. acquaintance B. investigation
C. significance D. recognition
在线课程【答案】A
【解析】
试题分析：句意：虽然我们一直生活在同一个社区多年，但我却并不认识他，更不用说知道他在哪儿工作了。acquaintance 结识，认识；investigation 调查；significance 意义；recognition 承认，认可。