I usually sleep with the window open _____ it’s very cold.
#58323
A
until
B
unless
C
when
D
if
推荐题目
Help others whenever you can you’ll make the world a nicer place to live.
#55388
A
and
B
but
C
or
D
unless
—Don’t worry. Your uncle is coming to help you. —________he doesn’t come?
#56040
A
What if
B
Why not
C
What about
D
What for
