—Could you tell me ________?

—By telling them some funny stories. [ ]

A. when I can visit the children

B. why the children are not happy

C. where the children want to go

D. how I can cheer up the sick children

营业时间经办人员如需（），应将重要空白凭证入保险柜（尾箱）妥善保管。

A.临时离岗

B.休班

C.暂时休息

D.到其他地方开会