----- Nội dung dịch tự động từ ảnh ----- Ex3: Chọn từ đúng 1 I was doing my homework when / while my father came home. 2 When / While we were watching TV, the lights went out. 3 When / While you were sleeping, Dave phoned. 4 Ben was walking home from school when / while he found €10 in the street. 5 I was writing an email to a friend when / while my parents came back. 6 When / While I was talking to Sarah, Tim walked into the room.
