Many people complained about the stones lying on a road, but _______ did anything about getting the stones out of the way.
Only by shouting at the top of his voice _______.
_______that he was in great danger, Eric walked deeper into the forest.
As a result of the serious flood, two thirds of the buildings in the area ______.
Bill suggested _______ a meeting on what to do for the Shanghai Expo during the vacation.
Over the past decades, sea ice in the Arctic as a result of global warming.