I_______ laughing when my son made a face.
#74070
A
burst into
B
burst upon
C
burst out
D
burst on
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What surprised me was not what he said but       he said it.
#72748
A
the way
B
in the way that
C
in the way
D
the way which
There______ a number of natural mysteries in the world that even make scientists ______.
#76672
A
exists; confusing
B
are existed; confused
C
exist; confused
D
exist; confusing