I know the man by ____ but I have never spoken to him.
| A．chance | B．heart | C．sight | D．experience |
I don't think these issues are __________ discussing with the ministers.
| A．worthy |
| B．worth |
| C．worthy of |
| D．worth to |
The rise of oil prices made scientists search for new energy re-sources to __________ oil.
| A．remove |
| B．replace |
| C．explode |
| D．explore |
The parents couldn't tolerate __________ the messy __________ in the room.
| A．seeing; scene |
| B．to see; sign |
| C．seeing; view |
| D．to see; scenery |
The speed of cars is usually limited __________30 miles per hour on the busy city street.
| A．by |
| B．at |
| C．to |
| D．for |
__________ around the fire, the tourists danced with the local people.
| A．Gather |
| B．To gather |
| C．Gathering |
| D．To be gathering |