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 |
Last week I called at my_________. .
| A．aunt | B．aunts | C．aunt’s | D．auntes’ |
The beach is a______throw.
| A．stone | B．stones | C．stones’ | D．stone’s |
I can hardly imagine______sailing across the Atlantic Ocean in five days.
| A．Peter’ | B．Peter | C．Peters | D．Peters’ |
Recently CCTV Station has taken great pains to make a program that reviews the important_____0f 2008.
| A．affairs | B．events | C．matters | D．things |
There’s no______from my bedroom window except for some factory chimneys.
| A．view | B．scene | C．sight | D．look |