Put yourself in situations where you will be forced to communicate in English, ____ you will see more progress over time．
| A．or | B．so | C．yet | D．and |
—I want to know _____ makes you a successful director.
—I worked as a secretary for five years，_______contributes a lot to my today’s work.
| A．what , that | B．that, when |
| C．that, which | D．what, which |
The color green ________ spring, which is the time of year when things in nature start to grow after a long winter.
| A．symbolizes | B．witnesses |
| C．announces | D．proves |
Everybody has the responsibility to save water, if future generations are to enjoy a similar standard of living to ________ we enjoy now.
| A．the one | B．one | C．that | D．it |
Corruption is a problem in countries across the world, with developing countries often _________ more serious, although there is no evidence to suggest this is the case.
| A．believed to be | B．believing to be |
| C．believed being | D．believing being |
________ fuel supplies being finite and many people being wasteful, we will have to install some type of solar heating device in our home.
| A．On condition that | B．On behalf of |
| C．On account of | D．In spite of |