[ Gerund or Infinitive ]
Don’t forget … off the lights.
A. turning
B. to turn

Random Topics:
Past Perfect SimpleTenses and FoodSpellingModals and Modal PerfectsFirst Conditional & Future TensesModals of ProhibitionWh-QuestionUsed to & would & Past SimpleModals AuxiliarySimple Present and Past TensesOther quiz:
Grammar › ViewI found a very _______ book.
A. new
B. old
Grammar › View
My teacher (have) long hair.
A. have
B. has
C. have had
D. had
Grammar › ViewThere are _______ days of school before the end of the year than we thought we had.
A. less
B. fewer
Present Simple, Present Continuous or Present Perfect › View
She _____ (study) for her English grammar test yet.
A. hasn’t studied
B. does study
C. don’t study