John was about to go back to sleep ______ suddenly his bedroom became as bright as day．
| A．after | B．when | C．while | D．until |
Look out the traffic when crossing the road.
| A．at | B．of | C．for | D．with |
The bridge is 1000 meters length.
| A．with | B．in | C．at | D．on |
The two countries were between 1989 and 1992.
| A．peace | B．at no war | C．at peace | D．at peaceful |
---Has the train arrived?
---No, it all will be late half an hour.
| A．at | B．for | C．in | D．by |
I wanted two seatsMadame Gurie for Friday night, so I rang the cinema to seeif I could book two tickets.
| A．of | B．about | C．to | D．for |