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科目： 來源：不詳 題型：單選題

— Tom is never late for work. Why is he absent today ?
— Something _______ to him.
A．must happenB．should have happened
C．could have happenedD．must have happened

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科目： 來源：不詳 題型：單選題

The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
A．shouldB．mustC．willD．can

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科目： 來源：不詳 題型：單選題

Helen ______ go on the trip with us, but she isn’t quite sure yet.
A．shallB．mustC．mayD．can

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科目： 來源：不詳 題型：單選題

— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.  
— Oh, dear ! She ______ a lot of difficulties !
A．may go throughB．might go through
C．ought to have gone throughD．must have gone through

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科目： 來源：不詳 題型：單選題

He paid for a seat, when he ______ have entered free.
A．couldB．wouldC．mustD．need

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科目： 來源：不詳 題型：單選題

This cake is very sweet. You _____ a lot of sugar in it.
A．should putB．could have putC．might putD．must have put

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科目： 來源：不詳 題型：單選題

— Do you know where David is ? I couldn’t find him anywhere.
— Well. He ______ have gone far –his coat’s still here.
A．shouldn’tB．mustn’tC．can’tD．wouldn’t

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科目： 來源：不詳 題型：單選題

If I ________ plan to do anything I wanted to. I’d like to go to Tibet and travel through as much of it as possible.  
A．wouldB．couldC．had toD．ought to

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科目： 來源：不詳 題型：單選題

— Shall I give you a ride as you live so far away ?
— Thank you. _______.
A．It couldn’t be betterB．Of course you can
C．If you likeD．It’s up to you

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科目： 來源：不詳 題型：單選題

If I ______ plan to do anything I want to，I’d like to go to Tibet and travel through as much of it as possible.
A．wouldB．couldC．had toD．ought to

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