I can never forget the day _______ we worked together and the day ______ we spent together.
#73355
A
when; which
B
which; when
C
what; that
D
on which; when
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On returning from work, _____.  
#70204
A
John found a letter in the mailbox
B
a letter was found in the mailbox  
C
a letter was in the mailbox
D
the mailbox had a letter in it
One of them held the view ____ the book said was right.
#68584
A
what that
B
that what
C
that
D
whether