----The light in the office is still on.--Oh I forget .A. turning it offB. to turn it

问题补充：

----The light in the office is still on. ----Oh, I forget .

A. turning it off

B. to turn it off

C. turning off it

D. to turn off it

答案：

A. turning it off

(答案→)B. to turn it off

C. turning off it

D. to turn off it

解析：考查短语：forget doing 忘记做了某事，forget to do 忘记做某事，句意：办公室的灯还亮着呢。噢，我忘记关掉了。turn off 关掉，有代词时应放在其中间，所以选B。