Scarcely had they settled themselves in their seats in the theatre ______ the curtain went up.
#31715
A
then
B
before
C
when
D
then
推荐题目
Many young people don't work hard, and regret it later when the opportunity is gone.They only realize it________it is too late.
#30659
A
when
B
before
C
in case
D
until
I have no idea ______ measures the government will take to stop the air from being further polluted.
#30177
A
which
B
what
C
that
D
whose
He failed in the exam, and I wonder ___ he studied hard in the school.
#80339
A
when
B
that
C
if
D
where
