Only you step into society can you learn practical things.
| A．while | B．that | C．when | D．as |
He was so __________ a key university that he would work until late into the night.
| A．curious about | B．anxious about | C．desperate for | D．concerned about |
－Look! Everything here is under construction.
－Oh, has the building once _________ for exhibition been pulled down, too?
| A．being built | B．been built | C．to be built | D．built |
_________ the floor, I found his pen lying on the ground.
| A．While sweeping | B．While swept | C．If sweeping | D．If swept |
They urged that the library _________ open during the vacation.
| A．must be kept | B．is kept | C．would be kept | D．be kept |
Children under six are not __________to school except those of extraordinary intelligence.
| A．permitted | B．admitted | C．accepted | D．received |