This building is both a secret and a mystery. No one shall be admitted into it ______ he can give the right password.
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A
if
B
as
C
since
D
unless
推荐题目
At school, some students are active some are shy, yet they can be good friendswith one another.
#31236
A
while
B
although
C
so
D
as
. ---- we will take the conditions into careful consideration ______ you have attached to this contract. ---- Thanks. Wish our future cooperation pleasant.
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A
after
B
when
C
what
D
which
It is because she loves her students _____ she is respected by them.
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A
who
B
which
C
what
D
that
Earth is a rocky planet _______ liquid water, which is necessary for life, can exist.
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A
as
B
which
C
where
D
when