By using both ears one can tell the direction ______ a sound comes.
A. in which
B. from which
C. with which
D. through which
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She has fallen in love with silly Jack, ______ I find hard to imagine.
A. who
B. whom
C. that
D. which
This is _____ I can do for you right now.
A. which
B. that
C. what
D. as
It was at our college library _____ I borrowed the novel.
A. which
B. in which
C. that
D. where
I have seen trees, _____ open at sunrise and close at sunset.
A. which the leaves
B. of which leaves
C. whose leaves
D. its leaves
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