单项选择题

The personnel section would like to advise all employees that from now on, no smoking breaks will be allowed （） regular work hours.

A.while
B.during
C.after
D.through

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单项选择题

（） you have written authorization from the Security Department, please do not enter the zone delineated by the green line.

A.Because
B.Unless
C.Despite
D.Whereas

单项选择题

The company has received many complaints from customers who believe that our rates are far from （）.

A.allowable
B.satisfied
C.trustworthy
D.reasonable

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