下列哪些属于护理小结内容（）。

A.护理效果是否满意

B.护理措施是否落实

C.评价反馈是否实现

D.护理目标是否达到

E.护理问题是否解决

It was____ computer games that cost the boy lot of time that he ought to have spent on his lessons.

A．to have played

B．playing

C．played

D．having played