Every Friday is the school open day , __________ parents can go to the class to observe it .
| A．where | B．when | C．whose | D．which |
All the、doctors in the hospital insisted that he __________ badly wounded and that he __________ at once.
| A．should be；be operated on |
| B．were;must be operated on |
| C．were；should be operated |
| D．was；be operated on |
__________，there are 50，000 visitors to the exhibitionevery day.
| A．At average | B．By average | C．On average | D．To average |
The custom, practice, idea and belief have __________ from generation to generation.
| A．passed down |
| B．been passed down |
| C．been carried forward |
| D．to passed on |
__________ meet her at the railway station, he had toget up early.
| A．In order that | B．In order to | C．So that | D．So as to |
The open-air celebration has been put off __________the bad weather.
| A．in case of | B．in spite of | C．instead of | D．because of |