________ around the Water Cube, we were then taken to see the Bird's Nest for the 2008 Olympic Games.
A．Having shown B．To be shown
C．Having been shown D．To show
The storm left，________ a lot of damage to this area .
A．caused B．to have caused
C．to cause D．having caused
Oil prices have risen by 32 percent since the start of the year，________ a record US $57.65 a barrel on April 4.
A．have reached B．reaching
C．to reach D．to be reaching
He hurried to the booking office only ________ that all the tickets has been sold out.
A．to be told B．to tell C．told D．telling
—Can those ________ at the back of the classroom hear me?
—No problem.
A．seat B．sit C．seated D．sat
Reading is an experience quite different from watching TV; there are pictures ________ in your mind instead of before your eyes.
A．to form B．form
C．forming D．having formed
