Laura in the office for 4 hours. Tell her to have a rest please. A. worksB. was working

问题补充：

Laura in the office for 4 hours. Tell her to have a rest, please.

A. works

B. was working

C. worked

D. has worked

答案：

A. works

B. was working

C. worked

(答案→)D. has worked

解析：句意:Laura在办公室里工作了4个小时，请告诉她让她休息一下。work 是一个动词，意思是工作。根据句意可知，Laura在办公室已经工作了四个小时，应该用现在完成时，故选D。A是一般现在时，表示经常性或习惯性的动作；B是过去进行时，表示过去某个时间正在发生的动作；C是一般过去时，表示过去时间发生的动作。