EX17. Khoanh tròn đáp án đúng. My first voluntary experience It was a sunny day (1) _______ I first involved in community service. I (2) _______ a group of more than 20 students to do voluntary work in a school of (3) _______ children. Soon after we came there, the leader divided us into several teams with different duties. My job was to play with the children there. To be honest, I was a bit confused at first. There were many children and all of them had health problems. However, most of them were (4) _______ and friendly. They seemed to enjoy the volunteer’s visit and they played joyously with us. We (5) _______ the kids with paper and pencils and instructed them to draw. We maintained a cozy atmosphere until the volunteer group had to leave. It was such an amazing experience to me that I could (6) _______ forget it. I have involved in many other charitable projects (7) _______ my first voluntary experience. I think I will continue doing charity in the future (8) _______ I have time. 1. A. when B. since C. for D. before 2. A. was B. came C. joined D. made 3. A. small B. strong C. disabled D. cute 4. A. badly-behaved B. naughty C. mischief D. well-behaved 5. A. provided B. bought C. lent D. borrowed 6. A. always B. often C. never D. just 7. A. since B. for C. when D. before 8. A. since B. for C. if D. unless