Junk messaging has been a headache for years, ＿＿the action taken by the authori-ties has not yet produced the results expected
#30981
A
as
B
but
C
so
D
before
推荐题目
It is said that the school will be built in__________is called developing zone.
#34796
A
what
B
that
C
which
D
where
No one knows exactly ______ this important discovery was made.
#33284
A
that
B
that how
C
what
D
when
I have no idea ______ the journalist could have got his information from.
#33450
A
that
B
why
C
why
D
where
Never let your mind wander when driving, ______ a car crash is probable.
#79847
A
but
B
so
C
because
D
or