It has always been the _____ of our firm to encourage workers to take part in social activities.
| A．plan | B．campaign | C．procedure | D．policy |
Please do me a favor, —the box upstairs.
| A．carry | B．to carry | C．carrying | D．having carried |
We know that the Black Sea, one thousand years ago, was a fresh water lake about ________ and unconnected with the Mediterranean.
| A．its two thirds present size | B．two-thirds size of the present |
| C．its two-thirds of the present size | D．two- thirds its present size |
— I’m sorry to hear that some villagers got disabled in the earthquake.
— That’s too bad, but _______.
| A．all is well that ends well | B．the darkest hour is nearest the dawn |
| C．where there is life, there is hope | D．it is good to have friends in trouble |
The Yangtze River, China’s longest, has been affected by a severe drought, ________ the lowest level of rainfall this year since 1961．
| A．with | B．for | C．beyond | D．besides[来 |
Professor Smith, along with his assistants, _________on the project day and night to meet the deadline.
| A．work | B．working | C．is working | D．are working |