.No important progress was made in the UN Climate Conference in Copenhagen as ______ of the rich countries agreed to offer large amounts of money to fight global warming.
| A．nothing | B．none | C．neither | D．both |
Animals should not be locked in cages; they should be in their normal _____.
| A．environment | B．position | C．residence | D．dwelling |
The lady who had invited us heard me telling my wife that the dinner was terrible so I was _____.
| A．confused | B．nervous | C．shameful | D．embarrassed |
Air and the sun's rays create much distortion, and whatever tends to _____ their influence is useful to the astronomer.
| A．exclude | B．eliminate | C．extinguish | D．impose |
The filling station _____ because there were too many others on the street.
| A．fell through | B．went under | C．fell out | D．went through |
His job at the hospital did not pay much, so he found another _____.
| A．on the rise | B．on the spot | C．on the decline | D．on the side |