My brother has been teaching ________ he was 21 years old.
#55820
A
when
B
if
C
for
D
since
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 I enjoy the popular dance “hip-hop” ,but _____ my father ____  my mother likes it. 
#57455
A
both ;and
B
ont only; but also
C
either ;or
D
neither ;nor
I have known him________ I was young.
#55691
A
before
B
when
C
after
D
since
____ it’s raining , _______ they expect to go to the park. 
#55811
A
Although ; but
B
Although ; /
C
/ ; /
D
But ; although