He was very busy that day，but he seemed_________ when we dropped by．
| A．unbearable | B．skeptical | C．delighted | D．challenging |
_______that he was in great danger, Eric walked deeper into the forest.
| A．Not realized | B．Not to realize | C．Not realizing | D．Not to have realized |
As a result of the serious flood, two thirds of the buildings in the area ______.
| A．need repairing | B．needs to repair | C．needs repairing | D．need to repair |
Bill suggested _______ a meeting on what to do for the Shanghai Expo during the vacation.
| A．having held | B．to hold | C．holding | D．hold |
Over the past decades, sea ice in the Arctic as a result of global warming.
| A．had decreased | B．decreased | C．has been decreasing | D．is decreasing |
Life is like a long racewe compete with others to go beyond ourselves.
| A．why | B．what | C．that | D．where |