—Is there any vaccine(疫苗) against H1N1 flu that can be used on humans?
—No, but scientists are working to develop ________ .
| A．that | B．it | C．one | D．so |
I got __________ from my classmates when climbing the hill.
| A．divided |
| B．dividing |
| C．separated |
| D．separating |
The teacher __________ his students __________ five groups.
| A．divided ； into |
| B．separated ； from |
| C．separated ； into |
| D．divided ； from |
The police are trying to find out the __________ of the woman killed in the traffic accident.
| A．evidence |
| B．recognition |
| C．identity |
| D．status |
—Who knows where Terry is?
—The reason __________ Terry is absent is __________ his father had an accident.
| A．why ； because |
| B．why ； that |
| C．that ； because |
| D．that ；/ |
__________ you have finished this programme, can you talk about our plan for holiday trip now?
| A．When |
| B．Because |
| C．In order that |
| D．Now that |