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He works in China,but he___in Africa for 8 years.

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He works in China,but he___in Africa for 8 years.
A.work B.has worked C.had worked D.has been working
A选项写错了，应该是worked.
He works in China,but he___in Africa for 8 years.
c
再问： 答案是A.
再答： 哦 是的 想起来了
再问： ￣□￣｜｜，为什么呀，说呀...
再答： 如果是问题是He works in Africa ,and he_has worded_in Africa since 8 years old。 有since的时候才用完成时态。for表示过去的一个状态，不表示持续性，一般是过去式，上诉动作已经结束。since就要用完成时态
He works in China,but he___in Africa for 8 years. He works in China now ,but he __ in Africa for eight years.( He is in China now.He ____ (work)in Africa for 5 years.请问到底填 He works in a company now,but he＿in a factory for 20 years. Mr.Robinson() on China for many years,but now he is in Austr The Englishman lires in china for a few years,but he can spe He works as a teacher now,but he ___ on a farm for 3 years.A China is in Africa for China什么意思 He has has been in Green China for 2 years. He works as a teather now,but he__on a farm for three years tom ______(work)in London for 10 years and now he works in B He works in China.(变一般疑问句)