—It’s 10 o’clock now. I must go. —It’s raining outside. Don’t leave _______

题型：专项题难度：来源：

—It’s 10 o’clock now. I must go.
—It’s raining outside. Don’t leave ________ it stops. [     ]
A. when
B. since
C. while
D. until

答案

举一反三

Hurry up, Jack. We have to get to the station before 11:45 ________ we can catch the 12:00 train.      [     ]
A. since
B. after
C. as soon as
D. so that

题型：专项题难度：| 查看答案

Learn to think ________ we are young, or we may never learn.      [     ]
A. during
B. when
C. before
D. after

题型：专项题难度：| 查看答案

My brother and I look different ________ we are twins.       [     ]
A. unless
B. as
C. though
D. because

题型：专项题难度：| 查看答案

I have been trying my best to study English ________ I want to have a chance to be a volunteer for the Beijing Olympics.       [     ]
A.until
B. because
C. though
D. when

题型：专项题难度：| 查看答案

I will never forget that terrible accident ________ it happened so long ago.      [     ]
A. only if
B. even though
C. only when
D. ever since

题型：专项题难度：| 查看答案