The policeman is still not sure ______ the young man killed himself or was killed.
#56983
A
if
B
that
C
whether
D
weather
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 He was so tired that he fell asleep ___he went to bed.
#58470
A
as if
B
even though
C
ever since
D
as soon as
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#56889
A
Although , but
B
Although, /
C
Although ,so
D
but , /
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#57823
A
while
B
since
C
when
D
as