It is _____ he often fails in exams ________ makes his parents worried about him.
#84737
A
what; that
B
that; what
C
that; that
D
/; that
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Sometimes I wonder ______ that has made me feel differently from the others. 
#85192
A
how is it
B
what is it
C
how it is
D
what it is
Why!I have nothing to confess(坦白) .  ______ you want me to say?
#84948
A
What is it that
B
What it is that
C
How is it that
D
How it is that
He went home for lunch ____ the clock struck twelve.
#85487
A
while
B
immediately
C
right away
D
at once