By the time they arrived at the station, the train         .

---Has Tom finished his homework?---I don’t know.  But he _________ it the whole morning. 

—— What’s she doing for vacation?——She’s _____ Beijing. 

—Did you see a boy in blue pass by just now?—No, sir. I ______ a magazine. 

The pet dog is warm and loving, It ______ as a daughter of my family.