Fill in the blanks with the suitable form of the verbs given in brackets:
1. When I ......... (reach) the railway station, the train ......... already ......... (have + left) the station. Then I ............. (go) by bus.
2. While the guests ........ (be + watch) TV, thieves broke into the house and ........ (steal) a lot of gold and cash.
3. You can see him now. See how he ..... (be + stand) there. His face is ........... (wrinkle).