Who is the man _______ made a mistake yesterday?
A. who
B. whom
C. that
D. which
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The boss is satisfied with _______ you have done.
A. all that
B. that
C. which
D. all what
Do you know the girl _________?
A. to that he often speaks
B. whom he often speaks to
C. to who he often speaks
D. he often speaks
The World Wild Fund for Nature is an organisation _________ aim is to protect wildlife.
A. who
B. where
C. which
D. whose
When she came back from her trip, Alice told us about the cities and people _______ she had visited.
A. that
B. who
C. where
D. which
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