---Bad luck! I ________ the sidewalk when an Audi cut in and knocked me down.
---You can never be too careful!
| A．crossed | B．have crossed |
| C．was crossing | D．had been crossing |
My father____ a teacher, but now he works in a factory.
| A．was used to be | B．used to be |
| C．used to being | D．is used to being |
John opened the door. There____he had never seen before.
| A．a girl did stand | B．a girl stood |
| C．did a girl stand | D．stood a girl |
My mother has two brothers, both of ____ graduating from Beijing University．
| A．whom | B．them | C．which | D．who |
When I first met Bryan I didn’t like him, but Imy mind.
| A．have changed | B．change |
| C．had changed | D．would change |
Police have found appears to be the lost ancient statue.
| A．which | B．where | C．how | D．what |