1/ went-were having 

2/ were crossing-saw

3/ saw-was standing

4/ was reading-was learning-was doing

5/ rang-was taking

( Cho mình ctlhn nha >< )

#Chúc_cậu_học_tốt !! 

~ Never give up ~

1) The light ( go )went out while we ( have ) were having dinner
2) As we ( cross ) were crossing the street , we ( see )saw an accident
3) Tom ( see) saw a serious accident while he ( stand ) was standing at the bus stop
4) While my father ( read ) was reading a newspaper , i (learn) was learning my lesson and my sister ( do ) was doing her homework
5) The bell ( ring ) rang while tom ( take ) was taking a bath