damthuha2001 11/23/2023 9:59:16 PM

Question 45: Because I’ve been ill and away from school. I’ve fallen ______ with my work.      

A. for                                 B. behind                           C. on                                  D. out

1000 câu khó mục tiều 9+ Tiếng anh ôn Tốt nghiệp THPT Quốc Gia (Lesson 4)