This is an illness that can result in total blindness if_______.
| A．to leave untreating | B．left untreated | C．leaving untreating | D．is left untreated |
After a few months of ___ practice you will really start to see progress.
| A．consistent |
| B．original |
| C．enjoyable |
| D．convenient |
It is a common ___ for people to fancy others in their own situation.
| A．imagination |
| B．custom |
| C．error |
| D．idea |
He is rich, but he never took much ___ in the property he possessed.
| A．delight |
| B．comfort |
| C．happiness |
| D．wealth |
He telephoned the travel agency to ___ three air tickets to London.
| A．order |
| B．arrange |
| C．take |
| D．book |
The minister said, “We are ready for discussions with any legal parties, but we’ll never ___ with criminals.”
| A．negotiate |
| B．quarrel |
| C．argue |
| D．consult |