Giải các câu sau: ----- Nội dung dịch tự động từ ảnh ----- 12. The farmer up early every day and worked hard on the farm. (C) has gotten (D) got (A) gets D13. I (A) has never known 14. We (B) will get the singer before I heard his song at your fourteenth birthday. (B) never know (C) don't know (D) had never known all morning. Let's take a break now. (A) have studied (B) had studied (C) are going to study (D) were studying