I can’t remember ________ made the teacher give Mary the permission to leave the class earlier.
#85100
A
that it was what
B
what it was that
C
what was it that
D
that was it what
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Whether you believe it or not, it was________ caused the serious accident.
#84762
A
because of your carelessness that
B
because you were careless
C
you were careless that
D
your being carelessness that
People have come to understand _____ prevents so many Americans from  being as happy as one might expect.
#85069
A
that it is why
B
what does it that
C
why it does that
D
what it is that