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

32. By the time we _____ to the train station, Susan ____ for us for more than two hours.A. will get / has been waiting B. got / was waiting C. got / had been waiting D. get / will wait