______ he has made up his mind, no one can make him change it.
#31791
A
Once
B
Unless
C
Until
D
As
推荐题目
How did you manage to get to school on time ______ you missed the school bus?
#79910
A
when
B
if
C
once
D
because
Lucy is a very optimistic girl． she is faced with a difficulty, she always sees the bright side．
#31546
A
Now that
B
Every time
C
As soon as
D
On condition that
_________is known to us all is that the old writer, for __________ life was hard in the past, still works very hard in his eighties.
#33682
A
What; whom
B
As; whom
C
It; whose
D
What; whose
We had hardly arrived at the foot of the Yuntai Mountain it began to rain heavily .
#30964
A
than
B
when
C
until
D
after