问题
选择题
----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
答案:B
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。