American women usually identify their best friend as someone _____ they can talk frequently.
A. who
B. as
C. about which
D. with whom
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There are altogether eleven books on the shelf, ______ five are mine.
A. on which
B. in which
C. of which
D. from which
Luckily, we’d brought a road map without _______ we would have lost our way.
A. it
B. that
C. this
D. which
______ is reported in the newspapers, talks between the two countries are making progress.
A. It
B. As
C. That
D. What
I have many friends, _______ some are businessmen.
A. of them
B. from which
C. who of
D. of whom