Have you known Dr jackson for a long time?—Yes,since she()th

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/05/01 19:20:24

Have you known Dr jackson for a long time?—Yes,since she()the chinese society
A has joined B joins C had joined D joined 要解析

D.
since和时间点连用表时间段.joined过去式表示这一动作发生在过去某一时刻.
主句用完成时,也就是：
l have known Dr jackson since she joined the chinese society.
再问：题目没有提及时间点啊？
再答：时间点就是she joined the chinese society的时间呀
再问：完成时应该是had joined才是标准的完成时啊？我知道追问减慢了您的得分速度，所以又加了100分
再答： had joined是过去完成时；have/has done是现在完成时。这题用的是现在完成时。得分固然重要，把问题解释清楚，能够对你有帮助更重要! 谢谢!

Have you known Dr jackson for a long time?—Yes,since she()th 27.—Have you known Dr Jackson for a long time?—Yes,since she Have you known Dr.Jackson for a long time?Yes,since she join Have you known Dr.Jackson for a long time?Yes,since she ___t 1.Have you known Dr.Jackson for a long time?yes ,since she - 【08宁夏卷】27.—Have you known Dr.Jackson for a long time? Have you known Jessie for a long time?Yes,since 英语问题9道1、---Have you known Dr.jackson for a long time?\----Ye we're known sally.a long time.A.since B.by C,white D.for We haven't known each other for a long time since my good fr ——Have you known each other for long? Why have you kept me ____ here for so long a time?(wait) She