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

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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.