Câu hỏia. Kim: Hi, Tam. I went to your house at 9 am, but you weren't there.b. Kim: Ah, I see. How did you become a volunteer there?c. Tam: Oh, when you came, I was working as a volunteer at our local centre for community development. A. c-a-b B. b-c-a C. c-b-a D. a-c-b
