Something will have to be done about the air pollution, _______ ?
| A．does it |
| B．won't it |
| C．has it |
| D．will it |
_____ in prison for ten years, he seems to be unaware of what has happened outside.
| A．Having kept | B．Having been kept | C．Kept | D．Keeping |
— Did your father catch the train?
— No. The train _______ before we got to the railway station.
| A．had left | B．was leaving | C．would leave | D．left |
The old man _______ three large houses and a factory before he died. He was quite wealthy.
| A．possessed | B．concluded | C．contained | D．maintained |
Having been stuck in the cave for six days without food or water, the young man lay on the ground, _____.
| A．considerate | B．conscious | C．senseless | D．sensitive |
— Mr. Li is in trouble now.
— You needn’t feel sorry for him. He _____it on himself.
| A．took | B．brought | C．put | D．made |