_______ 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 |
The iPhone 4S is Apple’s first major hardware on the market ______ the Oct．5 death of co-founder Steve Jobs．
| A．for | B．to | C．from | D．since |
Don’t bother me．I am listening to the birds ______．
| A．singing | B．sing | C．to sing | D．sung |
He__________from his seat and answered the question__________by the teacher.
| A．raised; rose | B．raised; risen | C．rose; raised | D．risen; raised |
We prefer__________alone rather than__________.
| A．staying; go out | B．staying; going out |
| C．to stay; to go out | D．to stay; go out |
The collected money should be made good use __________the people who suffered a lot in the earthquake.
| A．of helping | B．to help | C．to helping | D．of to help |