_____ is known to us all that the 2012 O
题型:选择题
问题:
_____ is known to us all that the 2012 Olympic Games will take place in London.
A.It
B.Which
C.As
D.What
_____ is known to us all that the 2012 Olympic Games will take place in London.
A.It
B.Which
C.As
D.What