He had to be reminded two or three times ________ he could avoid making the same mistake.
#33440
A
before
B
until
C
when
D
after
推荐题目
Two professors at Harvard University published a study of 3,300 new graduates, looking at ______ their names had any bearing on their academic performance.
#30132
A
that
B
how
C
why
D
whether
Find ways to praise your children often，________ you'll find they will open their hearts to you.(2011·山东)
#30481
A
till
B
or
C
and
D
but
China is developing fast. That's ________ I think those of my colleagues who deal with China affairs should visit China.
#30407
A
because
B
why
C
when
D
how