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
It is considered unwise to give a child _______ he or she wants.
#33105
A
however
B
whatever
C
whichever
D
whenever
had never occurred to him that he might be falling in love with the new school.
#32016
A
He
B
That
C
It
D
This
It was seven o;clock in the morning ____ he came back.It was really at seven o’clock ___ he came back from work this morning.
#80513
A
that; that
B
when;when
C
when; that
D
that;when
The man in black was about to set fire to the house ____ the police came.
#33709
A
while
B
after
C
before
D
when