My brother has been teaching ________ he was 21 years old.
#55820
A
when
B
if
C
for
D
since
推荐题目
We just need one of you for the game.youyour brother can join us.
#56734
A
Both； and
B
Neither；nor
C
Either；or
D
Not only；hut also
You won’t feel happy at school ___ you get on well with your classmates.
#55528
A
though
B
when
C
unless
D
because
---Let me help you carry the box.---No, thanks. It’s big, __________ there is nothing in it.
#56462
A
and
B
so
C
but
D
because