Once you want to do something, you must get down _____it well. ( )
| A．do | B．doing |
| C．to do | D． to doing |
I must thank my parents ________to be a college student.
| A．to make it possible for me | B．to make it possible to me |
| C．for making it possible for me | D．for making it possible to me |
People living in the area where there is a lack of electricity often keep a supply of candles ________power failure.
| A．in case of | B．once | C．even if | D．in course of |
Many large cities,such as Liverpool and New York,have had experiments of this kind,________old factories turned into successful art centers.
| A．with | B．for | C．as | D．like |
________all his followers dead,the captain was taken by his enemy.
| A．For | B．As | C．Because of | D．With |
The conference has been held to discuss the effects of tourism ________the wildlife in the area.
| A．in | B．on | C．at | D．with |