Question

【题目】My family have been living in Chengdu ______ I was born. ( )

A. forB. whileC. sinceD. when

Answer 1

【答案】C

【解析】

本题考查时间状语从句的连词。For引导原因状语从句，while强调同时性，一般前后均进行时，since常见的从句用一般过去时，主句用现在完成时，符合本题。