There is no point advocating banning smoking in public ________ the law is introduced.
#30264
A
when
B
unless
C
since
D
because
推荐题目
The notice says _________ you are, you must show your tickets to enter the exhibition.
#31117
A
whoever
B
who
C
however
D
Whom
(2013·高考陕西卷)I have heard a lot of good things about you________I came back from abroad.
#30661
A
since
B
until
C
before
D
when
I’m thinking about going to Germany this summer and I need your advice. You’re the best person I know to answer my questions,____you’re German.
#80100
A
after
B
before
C
for
D
unless
___ most of the earth’s surface is covered by water, fresh water is very rare and precious.
#80429
A
As
B
Once
C
If
D
Although