Bad habits, ______ formed(形成), are difficult to give up.
#81576
A
and
B
once
C
for
D
but
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      that I advised them to go to see it.
#84324
A
It was so exciting film
B
So exciting a film was it
C
It was such exciting film
D
So an exciting film was it
They had just taken their seats, then _____
#82843
A
the chairman came
B
the chairman comes
C
came the chairman
D
comes the chairman
 Not until yesterday    that I had made a serious mistake.
#79928
A
didn’t I realize
B
did I realize
C
I didn’t realize
D
I realize
 This is an illness that can result in total blindness if_______. 
#84607
A
to leave untreating
B
left untreated
C
leaving untreating
D
is left untreated