He ____ the cave before the police arrived, but he failed.
| A．managed to flee away from | B．tried fleeing out of | C．managed fleeing | D．tired to flee |
I was sleeping when the telephone rang again.It was the third time that I ________ that night.
| A．have been interrupted | B．had been interrupted |
| C．interrupted | D．had interrupted |
Up to now，the program________thousands of children who would otherwise have died.
| A．would save | B．saves |
| C．had saved | D．has saved |
—Who do you think ________the book here?
—It may be John.He was sitting here all the morning.
| A．was leaving | B．leaves |
| C．had left | D．has left |
Mum，you really need to have a rest！You ________in the kitchen ever since you came back home three hours ago.
| A．had worked | B．were working |
| C．have been working | D．worked |
I have called the station and they told me the next train for Dalian ________at 3∶10.
| A．will leave | B．left |
| C．has left | D．leaves |