If we ______ take environmental problems seriously, the earth _______ worse and worse.
#40979
A
don’t; will be
B
won’t; isn’t
C
won’t; is
D
don’t; won’t be
推荐题目
It was April 29, 2011 _____ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
#68313
A
that
B
when
C
since
D
before
The book was written in 1946, ____ the education system has witnessed great changes.
#70115
A
when
B
during which
C
since then
D
since when
Peter was so excited _____he received an invitation from his friend to visit Wuxi.
#41342
A
where
B
that
C
why
D
when