______ it is required to follow the grammatical ruled when witting English,there are always some exceptions.
#80527
A
Unless
B
while
C
As
D
Since
推荐题目
The time is not far away _______ the information will be made known ______ more workers will be trained for their jobs．
#32738
A
until; which
B
when; that
C
before; that
D
as; which
It is well-known ______ a person, especially the old, eats too much he’ll feel uncomfortable.
#32594
A
that
B
when if
C
if
D
that when
She thought I was talking about her daughter, ________, in fact, I was talking about my daughter.
#79855
A
whom
B
where
C
which
D
while
I have a tight budget for the trip，so I'm not going to fly ________ the airlines lower ticket prices.(2012·上海，32)
#30443
A
once
B
if
C
after
D
unless
.It’s too noisy here. Take the children ______ it is quiet.
#34041
A
to which
B
where
C
to where
D
which