Mark the letter A, B, C or D to indicate the sentence that is best written from the words/phrases given.Câu hỏi uncle/ work/ engineer/ company/ since 1980. A. My uncle works as an engineer in this company since 1980. B. My uncle is working as an engineer in this company since 1980. C. It's my uncle who works as an engineer in this company since 1980. D. My uncle has worked as an engineer in this company since 1980.