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

36. If I had known about Josie’s illness, I wouldn’t have visited her.A. I saw Josie, and I knew she was ill.B. I didn’t know Josie was ill, so I didn’t see her.C. I didn’t see Josie although I knew she was ill.D. I didn’t know Josie was ill, but I saw her.