Many students didn"t realize the importance of study _______ they left school. [

题型：河北省模拟题难度：来源：

Many students didn"t realize the importance of study _______ they left school. [    ]
A. when
B. until
C. after
D. unless

答案

举一反三

He called her names, so she won’t forgive him _____ he makes an apology to her.   [     ]
A. although
B. once
C. if
D. unless

题型：同步题难度：| 查看答案

It is recommended that the exploration team take with them an extra set of equipment _____
unexpected emergency occurs. [     ]
A. in that
B. so that
C. now that
D. in case

题型：上海模拟题难度：| 查看答案

Jack wasn’t saying anything，but the teacher smiled at him _______he had done something very clever．[     ]
A．as if
B．in case
C．while
D．though

题型：江苏模拟题难度：| 查看答案

Frank insisted that he was not asleep ________ I had great difficulty in waking him up.[     ]
A．whether
B．although
C．for
D．so

题型：江苏模拟题难度：| 查看答案

I never saw him,         I can remember, reading anything but newspapers.[     ]
A. as far as
B. as soon as
C. unless
D. until

题型：山东省模拟题难度：| 查看答案