高中单选题26I’ve earned my own living since I was seven, ________

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高中单选题26
I’ve earned my own living since I was seven, _________ all kinds of jobs.
A. doing B. having done C. to do D. to have done
答案及原因,谢谢啦!请放心回答我会及时采纳!

选B.自从我七岁以后,我已经做过各种各样的工作来过活.望及时采纳!
再问：在这道题中 doing 和 having doing 有什么不同呢？
再答： have doing具有延续性，表示自从七岁以后，我都是我都是自食其力。祝学习进步，望及时采纳！~~~~
再问：在这里选having done（刚才打错了）和前面的 since I was seven 有关系嘛？
再答：当然，正是因为since i was seven.才选择可以延续的。having done。
再问：那也是伴随状语喽？再回答下，就采纳啦 \(^o^)/~ 谢谢
再答：是的，可以这么理解啦。

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