I gave her a piece of cake______ she ate greedily.
A. which
B. who
C. whom
D. when
I don’t like having to talk to people_________ I’ve never met before
A. who
B. which
C. whom
D. why
I’ll show you the photographs_________ I took on my last holiday
A. which
B. who
C. whom
D. whose
Those_________ know how to use time will learn most.
A. who
B. whose
C. when
D. which