He was very rude to the Customs officer, _____ of course made things even worse.
#68780
A
who
B
whom
C
what
D
which
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_______ I know the money is safe, I shall not worry about it. 
#74568
A
Even though
B
Unless
C
As long as
D
While
 Finally, he found his calculator __________ he lost it.
#67609
A
the place in which
B
in which
C
the place where
D
where
They have no idea at all ____.
#72409
A
what he is working on
B
what is he working on
C
what did he work on
D
what he is working