Carbon dioxide(CO2)_______ from burning fuels is the most common of the so-called greenhouse gases.
#91467
A
producing
B
having been produced
C
to be produced
D
produced
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The 2011 International University Games in Shenzhen now appeals to a lot of people across the world.
#93399
A
held
B
is being held
C
being held
D
to be held
Would you please make up a topic worth______ at tomorrow’s meeting?
#91552
A
discussing
B
discussed
C
to be discussed
D
being discussed
—Can those at the back of the classroom hear me?—No problem, sir !
#89426
A
seat
B
seating
C
seated
D
sit
______ with new scientific farming methods, they have been able to use less farmland thanin the past.
#95889
A
Equipped
B
Having equipped
C
To be equipped
D
Equipping