The science of medicine _______ progress has been rapid lately is perhaps the most important of all the science.
| A．which |
| B．in which |
| C．that |
| D．with which |
Marco was lucky enough to meet another prisoner enjoyed listening to his stories.（）
| A．who | B．which | C．whose | D．what |
It is _____ challenge for graduates to find ____ work as unemployment is very high nowadays.
| A．the; 不填 | B．a; a | C．a 不填 | D．不填;不填 |
—I’m afraid that I can’t finish the task as soon as planned．
——____________。
| A．Don’t be afraid | B．Don’t mention it | C．I suppose so | D．Take your time |
．Hardly_________the phone I was told that the hotel had been booked full．
| A．I had picked up；when | B．had I picked up；then |
| C．had I picked up；when | D．I had picked up；then |
It was not until one night_____we were doing our cleaning-up I got curious and wanted to see what was on the top floor．
| A．that；that | B．when；so | C．that；because | D．when；that |