_____ is known to us all that the 2012 Olympic Games will take place in London．
#15849
A
It
B
Which
C
As
D
What
推荐题目
I knocked on the door several times but _______________ answered, so I left.
#57026
A
somebody
B
nobody
C
anybody
D
everybody
Health experts believe that even a little exercise is better than______ at all.
#56598
A
none
B
little
C
no one
D
few
His earliest plays are excellent, but his latest one is ________.
#16792
A
something
B
everything
C
anything
D
nothing
Our classroom is very clean. Do you know who＿＿＿cleaned it?
#16940
A
was it that
B
it was that
C
was it who
D
he was