[ Grammar & Vocabulary ]
Turning off appliances when not in use is a habit that saves energy, ______ makes a big difference over time.
A. which
B. where
C. what
D. that

Random Topics:
Grammar ErrorsTransitive or Intransitive VerbsFuture Tense VerbAdverbs of How Something is DoneAdjective ending with ED & INGVerb Tenses and AgreementBare Infinitive and To InfinitivePresent Simple ProgressivePassive Voice and ModalsExclamationOther quiz:
Narrative Tenses › ViewThe children can decorate the Christmas tree by _______________.
A. them
B. himself
C. themself
D. themselves
Grammar › View
They are all well-mannered, ………. they?
A. isn’t
B. wasn’t
C. weren’t
D. aren’t
Conditional Sentence › ViewIf you _______ as I told you, you _____ in such predicament now.
A. did – wouldn’t be
B. had done – had not been
C. do – would not be
D. had done – would not be
Preposition › View
Grace is sleeping _______ the sofa.
A. on
B. in
C. at
D. beside
