EXERCISE 3I. CHỌN TỪ/ CỤM TỪ THÍCH HỢP (ỨNG VỚI A, B, C, D) ĐỂ HÒAN TH...

26. By this time next week, she_________ in this company for 20 years. A. has worked B. will work C. will have worked D. will be working