I shall remember the days __ we worked together.
#71598
A
when
B
which
C
that
D
of which
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 The old tower must be saved, _______ the cost. 
#70114
A
however
B
whatever
C
whichever
D
wherever
 After ____ seemed like hours he came out with a bitter smile.
#72316
A
which  
B
it
C
what 
D
that
I was about to leave the office ______ the telephone rang.So I stopped ______ it.
#70104
A
when; to answer
B
when; to reply
C
while; answering
D
as; replying