.Ihadbeenpuzzledovertheproblem

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.I had been puzzled over the problem for over an hour without any result, _____ all at once thesolution flashed across my mind.

A．while

B．when 　　

C．then 　　

D．as

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One can be strong, brave and faithful after all these hardships he has ________.

A．looked through

B．got through

C．put through

D．gone through

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— I have heard you are going to change your job. Are you serious?
—_______. I will quit my job.

A．Yes, I’ve made up my mind	B．No, I was joking
C．Yes, I do hope so	D．No, I’m not

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We are now living in ______ “Information Age”, ______ time of new discoveries and great changes.

A．the; a

B．an; the

C．不填; a

D．the; the

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—Oh, come on. Just ____________. Nothing can beat me.
—Well, to be frank, you should rewrite your essay.

A．come to the point

B．take your time

C．take your turn

D．don’t hesitate

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. For further ____________, please write to the following address.

A．information

B．message

C．news

D．knowledge

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