The traditional view is ________ we sleep because our brain..

The traditional view is ________ we sleep because our brain is “programmed” to make us do so.A.whenB.whyC.whetherD.that

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If you are too formal, people around you won't be _____. [..

If you are too formal, people around you won't be _____. [ ]A. at ease B. in danger C. in common D. at work

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He kept me well supplied _____ cups of coffee while I wrote ..

He kept me well supplied _____ cups of coffee while I wrote the report. [ ]A. to B. with C. in D. for

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He's given me so much help that I really want to do somethi..

He's given me so much help that I really want to do something for him _____. [ ]A. in returnsB. by turns C. in return D. in answer

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He wants to see changes in the company and I am sure he will..

He wants to see changes in the company and I am sure he will ______. [ ]A. on time B. at a time C. at one time D. in time

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