This building is both a secret and a mystery. No one shall be admitted into it ______ he can give the right password.
#32225
A
if
B
as
C
since
D
unless
推荐题目
The other day，my brother drove his car down the street at________I thought was a dangerous speed.
#30058
A
as
B
which
C
what
D
that
______ 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
_____ I admit that all these problems are difficult, I don’t agree that they cannot be solved.
#31404
A
Unless
B
While
C
Until
D
Since
Anyone can get into the club, _______ he is a member there.
#30809
A
even if
B
so long as
C
because
D
unless