The new system needs to be in operation for five months ________ it can be updated.
#30274
A
as
B
while
C
before
D
once
推荐题目
I think you should complain ---________ of course, you are happy with the way things are.
#31601
A
if
B
unless
C
as
D
because
When do you think ______ the job ?
#30883
A
he will do
B
will he do
C
that he will do
D
what will he do
A new study found ______ a teacher has anxiety about math, ______ feeling can influence how his or her female students feel about math.
#31312
A
when that; which
B
that when; that
C
that if; which
D
if that; that
_________ we admit that there are still some problems about NMET, we don't mean that it is of no use.
#80198
A
Until
B
While
C
As
D
Unless