Anh văn bằng B-007 1) They have been raising horses and cows on their farm ___ many years. a) after b) for c) since d) 2) John and Bob have been working on this project ___ five months already. a) after b) for c) since d) 3) I haven't seen him ___ a long time ago. a) after b) for c) since d) 4) She's been sick ___ yesterday. a) after b) for c) since d) 5) He's been working in the field ___ early this morning. a) after b) for c) since d) 6) He hasn't been in jail ___ more than three years. a) after b) for c) since d) 7) He came back home ___ the show ended. a) after b) for c) since d) 8) They've been teaching here ___ quite a long time. a) after b) for c) since d) 9) He hasn't been in jail ___ that time. a) after b) for c) since d) 10) We've been here ___ noon. a) after b) for c) since d) . Anh văn bằng B-007 1) They have been raising horses and cows on their farm ___ many years. a) after