_________ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
| A．Being separated | B．Having separated |
| C．Having been separated | D．To be separated |
_______ his reputation as a famous sketch(小品) actor, Zhao Benshan also involved himself in soap operas, best kown as love story in the countryside.
| A．With regard to | B．In spite of |
| C．In terms of | D．On top of |
—I wonder what makes you a great teacher?
—I _______ as a tutor in my spare time at college, which contributes much to my today’s job.
| A．work | B．have worked |
| C．had worked | D．worked |
Generally speaking, there are four essential factors _______ Chinese cooking is usually judged, namely, color, shape, smell and taste.
| A．that | B．with wich |
| C．where | D．by which |
A government spokesperson on Friday called for China's 500 million Internet users to _______ unconfirmed online rumors(谣言).
| A．boycott | B．promote |
| C．advocate | D．separate |
The deadly Ebola virus disease is different from flu, _______ they have some similar outward symptoms, such as fever and headache.
| A．since | B．as |
| C．though | D．unlsess |