Although they feel tired, _________they still go on working.
#56265
A
so,
B
but
C
/
D
and
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______I know him, ______I hardly talk to him.
#58081
A
Although; but
B
Although; /
C
/; Although
D
But; although
Mr. Huang decided to buy that CD player it was expensive.
#56025
A
even though
B
so that
C
because
D
as if