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科目： 來(lái)源：不詳 題型：單選題

He hasn’t got any hobbies---_______ you call watching TV a hobby.
A．IfB．UnlessC．WhenD．Since

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科目： 來(lái)源：不詳 題型：單選題

Scientists say it may be one year or so ________ it is possible to test the new medicine on human patients.
A．whenB．a(chǎn)fterC．beforeD．since

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科目： 來(lái)源：不詳 題型：單選題

He looks so weak and pale ________ suffering from a serious illness.
A．a(chǎn)s ifB．a(chǎn)s long asC．now thatD．even if

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科目： 來(lái)源：不詳 題型：單選題

There is no doubt _________ the world climate has been changing in recent years.
A．thatB．whatC．ifD．whether

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科目： 來(lái)源：不詳 題型：單選題

        children believe they can succeed, they will never become totally independent．
A．IfB．ThoughC．UnlessD．When

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科目： 來(lái)源：不詳 題型：單選題

John’s success has nothing to do with good luck. It is years of hard work _______has made him a great scientist today.
A．thatB．whenC．whichD．why

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科目： 來(lái)源：不詳 題型：單選題

—Did your father phone you shortly after the accident?
—No, it was a fortnight ________ he gave me a phone call.
A．sinceB．whenC．whileD．before

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科目： 來(lái)源：不詳 題型：單選題

Remember when you learned to water ski, David?  _________ you skied more, you got better and better. It’s the same with language study. 
A．a(chǎn)lthoughB．whileC．a(chǎn)sD． unless

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科目： 來(lái)源：不詳 題型：單選題

Bungee jumping is an exciting activity, very popular among young adults, ___________ courage matters more than strength. 
A．whoseB．thatC．of whichD．where

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科目： 來(lái)源：不詳 題型：單選題

Staff are allowed to take a ten-minute break every two hours to relax, use the bathroom or do ___________ else is necessary.  
A．somethingB．a(chǎn)nythingC．whateverD．what

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