----- Nội dung dịch tự động từ ảnh ----- Ex9: Past simple → present perfect. 1. We started learning English two years ago. We ( have ) ........................................... 2. He began writing articles when he was a student. He ( write ) ........................................... 3. My father has worked for this company for ten years. My father ( start ) ....................................... 4. The last time it rained was two months ago. It ( rain not ) ......................................... 5. I haven’t written to him since last month. I last ( write ) ......................................... 6. The last time we talk to John was last Christmas. We ( have not ) ....................................... 7. They haven’t gone camping since they were in the seventh form. _________________________