—I can’t find Xiao Ping, where did you see him this morning?—It was in the library______ he studied.
#85440
A
that
B
where
C
which
D
the one
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Was it _____ she heard with her ears _____ really made her frightened?
#85405
A
what;that
B
it;that
C
that;which
D
what;/
It was not until she had arrived home _______ her appointment with the doctor. 
#85138
A
when she remembered
B
and she remembered
C
did she remember
D
that she remembered