----- Nội dung dịch tự động từ ảnh ----- VIII. Complete the sentences with the present perfect form (positive or negative) of the verbs in brackets. S+ have/ has + PII 1. I have had (have) four exams so far this month. 2. Mr Tan (teach) in this school for over ten years. 3. You (not stop) talking since you got here! 4. Scientists (find) more than 30 unknown insects. 5. She (not see) Nathan since he left the town. 6. Someone (break) a window in our classroom.