lm hộ mik đc ko ----- Nội dung dịch tự động từ ảnh ----- Underline and correct the mistakes in these sentences. Write "True" if the sentence is right 1. She looks exhausted these days. She has worked too hard recently. 2. Mary has never been studying abroad before. 3. I have been waiting three hours already! 4. How long has he worked as a teacher? 5. She has written a letter and has sent it to her friend. 6. We have painted my room, and we think it looks nicer. 7. I have called Liz for hours, but she hasn't answered. 8. We have been knowing Mike for ages. 9. How many books has she ever read? 10. I have worked hard all day and I need a rest