2. 职称英语
  3. It has been quite a long time ______ the two companies established a business re

It has been quite a long time ______ the two companies established a business re

游客2023-10-06  77
问题 It has been quite a long time ______ the two companies established a business relationship.
选项 A、although
B、because
C、if
D、since
答案 A
解析 本题考查连词辨析。since引导的从句，可表示“自从……以来”，其主句用完成时态．从句用一般过去时。例如：Since he entered the university，he has made great progress in his studies． (自从他进入大学以来，他在学习上取得了巨大的进步。)；although用来引导让步状语从句；because引导原因状语从句；if引导条件状语从句。根据句意，选项D正确。
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