Not until they left school ______ how much their teachers loved them and helped them.
#93386
A
they realized
B
had they realized
C
they would realize
D
did they realize
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With the help of the teachers and classmates, the boy worked hard and finally caught up with his classmates. Now he is _______ all the others. 
#93346
A
as a good student as
B
as a student good as
C
as good a student as
D
as good as a student
—“Did you have any difficulty in yesterday’s homework?”—  “No, in fact I found _____.”
#92654
A
it very easy to do
B
it very easy done
C
very easy for doing
D
very easy to do it
 Officials believe that more than one person _____ for the big fire.
#93645
A
is to be blamed
B
should blame
C
should be blaming
D
is to blame