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You can come here to ask me ________ if you have any questions.

A．at one time

B．at a time

C．at any time

D．all the time

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相关试题

It is advised that nobody_______up too late at night so that you may be full of energy the next day.

A．will stay

B．stay

C．would stay

D．stays

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What do you think of the conclusion that I have _______ from these facts?

A．taken

B．made

C．drawn

D．got

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I think it must be the bridge _______that has caused the traffic jam.

A．repaired

B．to be repaired

C．being repaired

D．repairing

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Though _______ money, his parents managed to send him to university.

A．lacked

B．lacking of

C．lacking

D．lacked in

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_______a little longer in the morning, Bob turned off the alarm.

A．To sleep

B．Sleeping

C．Slept

D．Having slept

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