. It is pretty well understood ________ controls the flow of carbon dioxide in and out the atmosphere today.
| A．that | B．that what | C．what | D．how |
The plan once I objected to________ out fine.
| A．working | B．work | C．had worked | D．worked |
______you didn’t know the rules won’t be an excuse for your failure to report.
| A．Whether | B．Where | C．That | D．Why |
The new spokesperson of China’s Foreign Ministry, Ms Hua is reported _______ in Jiangsu Huaizhou High School.
| A．to study | B．to have studied |
| C．to have been studied | D．to be studying |
—David, can you tell me where I will _______ a good second-hand bike at a low price?
—You should turn to George, for he is a well-informed man.
| A．make up | B．hold up | C．pick up | D．take up |
—Do you know the headmaster well?
—Not really, just a nodding ______.
| A．acquaintance | B．administration |
| C．consequence | D．consideration |