The question that puzzled us is _____ we can get rid of the air pollution in the area.
| A．that how | B．how is it that | C．what is it | D．how it is that |
is known to us all is that the 2012 Olympic Games will take place in London.
| A．As | B．What | C．That | D．It |
Was it because of the heavy snowstorm in Europe the flight had to be put off?
| A．which | B．so | C．why | D．that |
In no place of China little about the economic development nowadays.
| A．the local government cares | B．does the local government care |
| C．doesn’t the local government care | D．cares the local government |
Tsinghua University, in 1911, is home to a great number of outstanding figures.
| A．found | B．founding | C．founded | D．to be founded |
In that school, English is compulsory for all students, but French and Russian are .
| A．special | B．regional | C．optional | D．original[ |