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科目： 來源：不詳 題型：單選題

Seldom ____ any mistakes during my past few years of working here.
A．would I makeB．did I makeC．I did makeD．shall I make

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科目： 來源：不詳 題型：單選題

Only after Mary read her article a second time _____the spelling mistakes.
A．did she noticeB．she noticed
C．does she noticeD．she has noticed

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科目： 來源：不詳 題型：單選題

He failed the mid-term examination and only then________how much time he had wasted.
A．he realizedB．did he realize
C．he had realizedD．had he realized

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科目： 來源：不詳 題型：單選題

Not once ________ to Michael that he could one day become a top student in his class.
A．occurred itB．did it occur
C．it occurredD．it did occur

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科目： 來源：不詳 題型：單選題

________ a mobile phone can you ring ______ you want to talk with anyway.
A．Using; whoeverB．Only on; whomever
C．By; whateverD．With; anyone

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科目： 來源：不詳 題型：單選題

Only when _____ be possible to sign the contract.
A．the lawyer comes it will
B．does the manager come will it
C．has the manager come it will
D．the manager comes will it

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科目： 來源：不詳 題型：單選題

______ the teacher has given permission, ______allowed to use the equipment in the lab.
A．Only if, are the studentsB．If only, the students are
C．If only, are the studentsD．Only if the students are

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科目： 來源：不詳 題型：單選題

Though _____ money, his parents managed to send him to university.
A．lackingB．lackC．lacked inD．lacking of

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科目： 來源：不詳 題型：單選題

Down __________ and hurt his leg.
A．fell the boyB．fell he
C．did he fallD．did the boy fell

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科目： 來源：不詳 題型：單選題

The new machine, if 　　　 properly, will work for at least ten years.
A．used B．useC．using D．being used

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