1. When I ( walk ) ___was walking___ down town , I (meet)_____met____ my old friend
2. We ( watch )____were watching___ T.V when the light ( go ) _____went______out
3. When they ( wait)___were waiting____ for the bus, it (rain)___rained___
4. Mrs Quyen always (forget) ____forgets___ her umbrella on the bus.
5. Would you like ( have ) __to have____ dinner with our family tonight ?
Chúc bạn học tốt!