---When did you move to Sanya? ---In ．But Iin Tibet for 8 years．A. has workedB. has be

问题补充：

---When did you move to Sanya?

---In ．But Iin Tibet for 8 years．

A. has worked

B. has been worked

C. have been working

D. worked

答案：

A. has worked

B. has been worked

C. have been working

(答案→)D. worked

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