Tham khảo tài liệu 'level b lesson 4', ngoại ngữ, chứng chỉ a, b, c phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Level B lesson 4 1. I go school in the morning. D A at B in C for D to 2. Would you like to one of my friends about it B u A talking B to talk C talk D talked 3. Mr Brown me a very nice letter a few days ago. C u A sends u B send u C sent u D have sent 4. She a very amusing article in one of the newspapers yesterday. A u A found u B find u C finds u D had found 5. They are their competition now. D u A started u B have started u C start u D starting 6. He got bronchitis and was taken to .