----- Nội dung dịch tự động từ ảnh ----- Exercise 3: Mỗi câu sau chứa một lỗi sai. Tìm và sửa chúng. 1. I haven't cutted my hair since last June. 2. She has not working as a teacher for almost 5 years. 3. The lesson haven't started yet. 4. Has the cat eat yet? 5. I am worried that I hasn't still finished my homework yet. 6. I have just decidedto start working next week. 7. He has been at his computer since seven hours. 8. She hasn't receivedany good news since a long time. 9.My father hasn't playedany sport for last year. 10. I'd better have a shower. I hasn't hadone since Thursday.