----- Nội dung ảnh ----- ``` I. Read the following passage and choose the best answer A, B, C or D to fill in each gap. (1 pt) I have recently completed a challenging fortnight course at a summer retreat last year. The experience was quite different from my usual (1) __________ at home. We woke up at 6 a.m. every day and attended various classes that felt like a mix of intense workshops and practical training. In the afternoons, we participated (2) __________ team-building and outdoor activities that pushed us to our limits. We also took part in other activities, which were both educational and rewarding. We were allowed to contact our families only (3) __________ a day. Throughout the course, we received heartfelt letters from (4) __________ families that lifted our spirits during tough times. This summer retreat has been one of the most helpful experiences I have ever had, teaching me the value of discipline and teamwork. I have (5) __________ participated in such an immersive program before, and it has left a lasting impression on me. 1. A. schedule B. habit C. custom D. routine 2. A. in B. at C. one D. us 3. A. one B. once C. time D. first 4. A. we B. us C. our D. ours ```