My car _____________(break) down when I _____________(drive) home from work. 2.   Alan _____________(look) out of the window when he      _____________(see) a UFO. 3.   When he _____________(see) me, he _____________(fall) off the wall. 4.   We _____________(try)to log on when the Wifi _____________(stop) working. 5    _________ Jim _________(smoke) when he _________(turn) on the gas? 6.   She _____________(be) so tired that she _____________(sleep) for twelve hours. 7.   The tortoise _____________(run) while the hare _____________(have) a nap. 8.   I _____________(phone) you four times last night but you _____________(sleep). 9.   The police __________(ask) them lots of questions before they ___________(release) them. 10. While the children __________(surf) the Internet, they __________(find) a really interesting website about music. 11. He _____________(walk) down the road when he _____________(hear) a loud noise. 12. When we _____________(be) in Canana, we _____________(go) skiing almost every day. 13. Where _________ you ________(go) last summer holiday, Jim? ~ Well, I __________(take) a trip to Minneapolis. 14. When I _____________(arrive), they _____________(say) hello but continued working. 15. When you   _____________(meet) me yesterday, I _____________(not go) to school, I _____________(go) to the doctor’s - I felt terrible.  Mình đg cần gấp. Cảm ơn