Làm và giải thích ạ ----- Nội dung dịch tự động từ ảnh ----- 21. Pait is directly responsible to the efficient running of the office. C. can never D. natural 20. Some people still think that natural resources can never be depleted. B. was 19. The doctor said that she was doing good progress. A. said 4. directly B. to C. for
