_____ the fact that David failed in the competition ,his teacher thought he had done his best.
| A．benefit | B．profit | C．power | D．advantage. |
_________ 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 |
We finished the run in less than half the time _________．
| A．allowing | B．to allow |
C．allowed | D．allows |
The trees _________ in the storm have been moved Off the road．
| A．being blown down |
| B．blown down |
| C．blowing down |
| D．to blow down |
It is one of the funniest things _________ on the Internet so far this year．
| A．finding | B．being found |
| C．to find | D．found |
If there is a lot of work．I'm happy to just keep on until it is finished．
| A． | to do | B． | to be doing |
| C． | done | D． | doing |