________ they decide which college to go to, students should research the admiss

题型：同步题难度：来源：

________ they decide which college to go to, students should research the admission procedures.[     ]
A. As
B. While
C. Until
D. Once

答案

举一反三

John thinks it won"t be long ________ he is ready for his new job.[     ]
A. when
B. after
C. before
D. since

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—Our holiday cost a lot of money.
—Did it? Well, that doesn"t matter ________ you enjoyed yourselves.[     ]
A. as long as
B. unless
C. as soon as
D. though

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The girl had hardly rung the bell ________ the door was opened suddenly, and her friend rushed out to
greet her.[     ]
A. before
B. until
C. as
D. since

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The engineers are so busy that they have zero time for outdoor sports activities, ________ they have the
interest.[     ]
A. wherever
B. whenever
C. even if
D. as if

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Just use this room for the time being, and we"ll offer you a larger one ________ it becomes available.[     ]
A. as soon as
B. unless
C. as far as
D. until

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