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科目： 來源：不詳 題型：單選題

Good news! The price of all those second-hand goods is ________ before.
A．30% as lower asB．30% lower than
C．lower 30% thanD．a(chǎn)s 30% low as

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科目： 來源：不詳 題型：單選題

-You look upset.
-Yes, this is the first time I________ form home.
A．leaveB．leftC．have been awayD．is away

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科目： 來源：不詳 題型：單選題

It was very important for us  ________ happy every day.
A．to stayB．stay C．stayedD．staying

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科目： 來源：不詳 題型：單選題

It is no use _______ about the coming exam.
A. worry   B worrying   C  worried   D  to worry

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科目： 來源：不詳 題型：單選題

—Oh, dear! I forgot the air tickets.
　  —You ______ something.
　 
A．have leftB．a(chǎn)re always leaving　C．a(chǎn)re leavingD．a(chǎn)lways left

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科目： 來源：不詳 題型：單選題

People in the west make_____a rule to buy Christmas presents for their relatives and friends.
A．thatB．the thingC．thisD．it

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科目： 來源：不詳 題型：單選題

Scientists say it may be five or six years_______it is possible to test this medicine on human patients.
A．whenB．a(chǎn)fterC．beforeD．since

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科目： 來源：不詳 題型：單選題

It was three o’clock _______ he came back from work.
A．sinceB．whenC．thatD．before

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科目： 來源：不詳 題型：單選題

________ has already been pointed out, only by correcting mistakes can you make progress.
A．ItB．AsC． ThatD．What

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科目： 來源：不詳 題型：單選題

—Are you firmly against any independence move by Taiwan?
—Of course. That’s ________ our basic interest lies.
A．whyB．whenC．whereD．what

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