It was a pity that the great writer died _________his works unfinished.
| A．for | B．with | C．from | D．of |
A notice was placed by the river bank warning people to ___________ the thin ice.
| A．keep off | B．keep out | C．keep away | D．keep on |
I was close to being killed the other day. A car passed me at ____ I thought was a dangerous speed.
| A．as | B．which | C．what | D．that |
After half a year’s training, they were made entirely used ____ underwater.
| A．stay | B．to stay | C．to staying | D．staying |
Thank you very much for the trouble you have taken _________ me with my English.
| A．helping | B．to help | C．help | D．helped |
Before the conference, a new problem came up __________ could speak on behalf of our group.
| A．that | B．who | C．which | D．how |