Carbon dioxide from burning fuels is the most common of the so – called greenhouse gases．
| A．producing | B．having been produced |
| C．to be produced | D．produced |
—We’re going rock climbing tomorrow. Why not join us?
—_______ It’s said that there might be a thick fog then.
| A．I disagree. | B．Great! | C．My pleasure. | D．That depends. |
. ________ is known to us all is _______ the 2008 Beijing Olympic Games is a great success.
| A．What, that | B．It, that | C．As, which | D．which, which |
The president made a decision to take immediate action _______ the improvement of the poor’s living conditions.
| A．contributed to | B．contributing to | C．consisted of | D．consisting of |
. Despite their quarrel, they _______ the best of friends.
| A．remained | B．are remaining | C．are remained | D．remaining |
—How are you getting on with your work plan?
—All goes well as _______, and I’m hoping to see it ________ on time.
| A．expected, carrying out | B．being expected, carried out |
| C．being expected, carrying out | D．expected, carried out |