The class will _______on some important matters.
________ in a white uniform, he looks more like a cook than a doctor.
________ around the Water Cube, we were then taken to see the Bird's Nest for the 2008 Olympic Games.
The storm left,________ a lot of damage to this area .
Oil prices have risen by 32 percent since the start of the year,________ a record US $57.65 a barrel on April 4.
He hurried to the booking office only ________ that all the tickets has been sold out.