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科目： 來源：不詳 題型：單選題

You shall get a film ticket free _______ you use your credit card twice this month.
A．untilB．sinceC．ifD．unless

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科目： 來源：不詳 題型：單選題

He failed in the exam not only        his laziness but also        he didn’t listen to the teacher.
A．because; for B．because of; because
C．a(chǎn)s; forD．for; since

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科目： 來源：不詳 題型：單選題

_________you have expressed your fierce determination to get it right, you should act immediately.
A．Even thoughB．Ever sinceC．Now thatD．As though

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科目： 來源：不詳 題型：單選題

The process of producing electricity may also give out CO2, ______ you heat your house with electricity instead of charcoal.
A．a(chǎn)s long asB．a(chǎn)s soon asC．a(chǎn)s ifD．even if

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科目： 來源：不詳 題型：單選題

You will succeed in the end ____ you give up halfway．
A．even ifB．a(chǎn)s thoughC．a(chǎn)s long asD．unless

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科目： 來源：不詳 題型：單選題

---- Could I take a few days’ leave, sir?
----- I’m afraid you can’t ___________ the work is being done.
A．untilB．beforeC．a(chǎn)fterD．a(chǎn)s

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科目： 來源：不詳 題型：單選題

________ there is going to be a policy change ________ of those things is going to change.
A．Unless; fewB．Until; fewC．Unless; noneD．Until; none

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科目： 來源：不詳 題型：單選題

The little girl crossed a large area of grassland into the woods _________ she realized that she was lost.
A．whenB．a(chǎn)sC．a(chǎn)fterD．before

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科目： 來源：不詳 題型：單選題

Jack was halfway back to the village where his mother lived _____ Mary caught up with him.
A．whenB．whileC．untilD．though

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科目： 來源：不詳 題型：單選題

This college allows students to develop their own interests, to ______　extent they wished．
A．whoeverB．whateverC．howeverD．whenever

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