_______ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
| A．Being separated | B．Having separated |
| C．Having been separated | D．To be separated |
The control of ________ bird flu in China finally proved to be ________ great success.
| A．the; the | B．the; / | C．/; a | D．/; / |
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 |