．（山东卷28）. The school rules state that no child shall be allowed out of the school during the day, ______ accompanied by an adult.
| A．once | B．when | C．if | D．unless |
This kind of tree is widely in our country.
| A．divided |
| B．constructed |
| C．distributed |
| D．separated |
The president of the World Bank says he has a passion for China, he remembers starting as early as his childhood. (2013 . 江苏)
| A．where |
| B．which |
| C．what |
| D．when |
He never gave up his dream and achieved his goal.
| A．personally |
| B．sincerely |
| C．eventually |
| D．originally |
--- 1 called you 10：30 pm. , but you didn’t answer it.
--- I my work and a bath.
| A．was doing; had taken |
| B．had done; had taken |
| C．was doing; was taken |
| D．had done; was taking |
The deserted island is only _ by boat.
| A．suitable |
| B．practical |
| C．available |
| D．accessible |