He wants to do nothing but _______ his homework.

A．finishing

B．finished

C．to finish

D．finish

When I entered the room, I found Mary ______ at the desk ______ her homework.

A．sat; doing	B．sitting; to do
C．seating; to do	D．seated; doing

On ________ our flight would be delayed, we made some other arrangements.

A．being informed	B．informed
C．informing	D．having informed

The president of the university arrived yesterday, _____ the start of his short visit to China.

A．marked

B．having marked

C．marking

D．to mark

____________ 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

More TV programs, according to government officials, will be produced _____ people’s concern over food safety.

A．to raise B．raising C．to have raised D．having raised

Michael put on a picture of Yao Ming beside the bed to keep himself _____ of his own dreams.

A. reminding

B. to remind

C. reminded

D. remind

It’s no use ______ without taking action.

A．complain

B．complaining

C．being complained

D．to be complained

The rare fish, ______ from the cooking pot, has been returned to the sea.

A．saved

B．saving

C．to be saved

D．having saved

At one point I made up my mind to talk to Uncle Sam. Then I changed my mind, ______ that he could do nothing to help.

A．to realize

B．realized

C．realizing

D．being realized