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科目: 來源:不詳 題型:單選題

   a bad habit is formed, it will take a long time to get rid of it.
A.Ever sinceB.WhileC.OnceD.Even if

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科目: 來源:不詳 題型:單選題

        red is a symbol of warmth, it can sometimes make people feel uneasy or even frightened.
A.AsB.WhileC.IfD.Since

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科目: 來源:不詳 題型:單選題

________scores of times, but Derek still couldn’t understand how to use past participle in a concrete situation.
A.Having explainedB.Having been explained
C.Though it was explainedD.It was explained

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科目: 來源:不詳 題型:單選題

—Did you get home a little earlier yesterday?
—No. It was six o’clock________ we got home.
A.thatB.whenC.sinceD.a(chǎn)fter

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科目: 來源:不詳 題型:單選題

-- What’s your plan for this winter vacation?
-- I’ll take an express train to Dalian for my holiday ______ school ends.
A.whileB.untilC.immediatelyD.unless

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科目: 來源:不詳 題型:單選題

I had hardly opened the door      he hit me.
A.thanB.whenC.whileD.until

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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

We don’t doubt _______ we will complete all the projects before the year 2010.
A.whenB.ifC.thatD.whether

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科目: 來源:不詳 題型:單選題

It wasn’t a few years _________we met each other.
A.sinceB.beforeC.untilD.a(chǎn)fter

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科目: 來源:不詳 題型:單選題

New trucks are widely used in the countryside ______ in the city.
A.a(chǎn)s wellB.both andC.a(chǎn)lsoD.a(chǎn)s well as

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