______has helped to save the drowning boy is worth praising.
| A．Who | B．The one | C．Anyone | D．Whoever |
—I'd like to know more about the accident.
—Better try __________ the CCTV website, and you can get the latest information in no time.
| A．visiting | B．to visit | C．to be visited | D．visit |
__________ in the cage for half a day, the bird became hungry.
| A．Being kept | B．Having been kept |
| C．Have been kept | D．Kept |
All flights __________ because of the snowstorm, we decided to take the train.
| A．were canceled | B．had been canceled |
| C．having canceled | D．having been canceled |
The little boy, __________ two attempts to climb over the fence of the garden, decided to have another try.
| A．having made | B．making | C．made | D．has made |
__________ out of work for a few months, mother took up the job of waiting on patients in the hospital.
| A．To be | B．Being | C．Having been | D．Having |