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科目： 來源：不詳 題型：單選題

Our country did a lot about the drunk-driving, and it took some time ____ the situation got better.
A．a(chǎn)fterB．sinceC．unlessD．before

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科目： 來源：不詳 題型：單選題

You are a student_________ I am a student.
A．butB．orC．a(chǎn)ndD．so

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科目： 來源：不詳 題型：單選題

Turn on the TV or open a magazine ______ you will often see advertisements showing happy, balanced families.
A．butB．tillC．a(chǎn)ndD．or

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科目： 來源：不詳 題型：單選題

It has been 60 years ______ the two countries established diplomatic ties.
A．that B．a(chǎn)fter C．from D．since

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科目： 來源：不詳 題型：單選題

Paul had to write a history paper,  _____ he couldn’t find time to do it.
A．butB．soC．becauseD．if

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科目： 來源：不詳 題型：單選題

___we do this today or tomorrow doesn’t make much difference.
A．WhenB．WheneverC．WhetherD．If

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科目： 來源：不詳 題型：單選題

The classroom is big enough for 25 students for normal use         you need more space for special activities.
A．onceB．becauseC．ifD．unless

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科目： 來源：不詳 題型：單選題

With some technical problems to be solved, it may be a while          the system is put into use.
A．whenB．a(chǎn)fterC．sinceD．before

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科目： 來源：不詳 題型：單選題

The cost of living in Glasgow is among the lowest in Britain, ______ the quality of life is probably one of the highest.
A．sinceB．whenC．a(chǎn)sD．while

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科目： 來源：不詳 題型：單選題

He tried his best to solve the problem, ______ difficult it was.
A．howeverB．no matterC．whateverD．a(chǎn)lthough

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