—Don’t you know your computer has been inflected with viruses? — Really？No wonder it hasn’

问题补充：

—Don’t you know your computer has been inflected with viruses?

— Really？No wonder it hasn’t as properly as before.

A. managed

B. controlled

C. operated

D. appeared

答案：

A. managed

B. controlled

(答案→)C. operated

D. appeared

解析：operate用作不及物动词, 意思为 “操作,运转”，句意：难怪计算机不如以前运转地正常了。其他选项均与句意不符：manage管理；经营生意；处理事务；control控制；支配；管理；appear出现；显露；好像。