_____ is known to us all that the 2012 Olympic Games will take place in London．
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A
It
B
Which
C
As
D
What
推荐题目
Charles Darwin, a young man just out of university, knew perfect well that he had to depend on _____ when he set out on a voyage of discovery around the world.
#15967
A
him
B
himself
C
themselves
D
them
Many people have been ill from a strange disease these days, _____ we’ve never heard of before.
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A
it
B
that
C
one
D
this
I met a friend _______ when I went to the shopping center for some fruits.
#16844
A
of my father
B
of my father’s
C
of my
D
of me