[ Grammar & Vocabulary ]
Turn all the lights … when you leave the room. We don’t want to waste electricity
A. on
B. off
C. in
D. out

Random Topics:
Prepositions and TensesPresent Simple Positive and NegativeDemonstrative PronounModals with Perfect InfinitiveHelping and Linking VerbsPrepositions of Time, Place, and MovementGrammar - ConnectorsAlong & AgainstPassive Voice Present SimpleTenseOther quiz:
Tenses › ViewShe ______ working now, she is sleeping.
A. is
B. isn’t
C. are
D. does
Tenses & Affixes › View
I ___ (start) a new hobby during summer vacation.
A. am going to start
B. will started
C. starting
