Question

【题目】— Have you known Dr Jackson for a long time?

— Yes, since he ___________ the club.

A. has joined B. joins C. was joining D. joined

Answer 1

【答案】D

【解析】

试题分析：句意：你认识杰克逊很长时间了吗？——是的，自从他加入俱乐部以来。该句完整的句式是：I have known Dr. Jackson since she joined the Chinese Society. since后跟的时间状语从句要用一般过去时，表示自从过去某个时间发生的动作到现在以来有多长时间了。