________ a child begins school, he enters a world of vicious competition where success and failure are clearly defined and measured.
#33375
A
Before
B
Until
C
Whenever
D
The moment
推荐题目
Julie was good at German，French and Russian，all of ________ she spoke fluently.(2011·湖南)
#30493
A
who
B
whom
C
which
D
that
The so-called Asia—Pacific century will make no sense_____ China develops．
#30731
A
unless
B
when
C
if
D
as
Doctor Brown says that _______ what forceful arguments against cigarette harm there are, many people insist on smoking.
#80091
A
though
B
however
C
no matter
D
even if