----- Nội dung dịch tự động từ ảnh ----- 16. They don't find out the remedy. The patient will die. 2 17. Susan felt sick because she ate 4 cream cakes. 18. If he hadn't wasted too much time, he wouldn't have failed in his examination. Unless........ 19. Rita is exhausted today because she didn't get any sleep last night. 20. The flats are not clearly numbered, so it is very difficult to find anyone.