III.Viết lại câu sao cho nghĩa không đổi: 1. The last time we saw her was on Christmas day. We haven’t ………………………………………………….. 2. I haven’t eaten this kind of food before. This is 3. It started raining an hour ago. It has 4. We haven’t visited my grandfather for two months. The last time 5. I have studied English for three years. I began 6. My brother hasn’t seen his best friend for nearly five years. It’s 7. When did you start learning English? How long 8. We started living here fifteen years ago. We have 9. The last time she visited me was five years ago. She hasn’t 10. I last wrote to my uncle in July. I haven’t