So sudden ________ that the enemy had no time to escape.[ ]A. did the attack

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So sudden ________ that the enemy had no time to escape.[     ]
A. did the attack
B. the attack did
C. was the attack
D. the attack was

答案

举一反三

Little ________ about her own safety, though she was in great danger herself.[ ]
A. did Rose care
B. Rose did care
C. Rose does care
D. does Rose care

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Unsatisfied ________ with the payment, he took the job just to get some work experience.[     ]
A. though was he
B. though he was
C. he was though
D. was he though

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So much of interest ________ that most visitors simply run out of time before seeing it all.[    ]
A. offers Beijing
B. Beijing offers
C. does Beijing offer
D. Beijing does offer

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Not until I began to work ________ how much time I had wasted.[      ]
A. did I realize
B. didn"t I realize
C. hadn"t I realized
D. had I realized

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John was fired by his factory and only then ________ how wrong he was to be lazy and careless.[     ]
A. had he realized
B. he had realized
C. did he realize
D. he realized

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