MR. BA HAS BEEN WORKING IN THIS COMPANY SINCE 1980. A. MR. BA HAS...

36. Mr. Ba has been working in this company since 1980. A. Mr. Ba has been working for this company in 1980. B. Mr. Ba started working in this company in 1980. C. Mr. Ba worked in this company in 1980. D. Mr. Ba has been in this company until 1980.